{"id":12124,"date":"2024-07-18T12:00:00","date_gmt":"2024-07-18T09:00:00","guid":{"rendered":"http:\/\/blog.tetrika.school\/?p=12124"},"modified":"2026-02-25T13:55:08","modified_gmt":"2026-02-25T10:55:08","slug":"perimetr-figury","status":"publish","type":"post","link":"http:\/\/blog.tetrika.school\/perimetr-figury\/","title":{"rendered":"\u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b"},"content":{"rendered":"\n<p>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u2014 \u044d\u0442\u043e \u0432\u0430\u0436\u043d\u043e\u0435 \u043f\u043e\u043d\u044f\u0442\u0438\u0435 \u0432 \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u0438, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0443\u0447\u0430\u0449\u0438\u0435\u0441\u044f \u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0439 \u0448\u043a\u043e\u043b\u044b \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0442 \u0438\u0437\u0443\u0447\u0430\u0442\u044c \u0441 \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u0444\u0438\u0433\u0443\u0440. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043c\u044b \u0440\u0430\u0437\u0431\u0435\u0440\u0451\u043c, \u0447\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440, \u043a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b \u0438 \u043a\u0430\u043a \u0435\u0433\u043e \u0432\u044b\u0447\u0438\u0441\u043b\u044f\u0442\u044c \u0434\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440. \u041c\u044b \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u0432 \u0437\u0430\u0434\u0430\u0447 \u0438 \u043e\u0442\u0432\u0435\u0442\u0438\u043c \u043d\u0430 \u0447\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0433\u0443\u0442 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u0443\u0442\u044c \u0443 \u0443\u0447\u0435\u043d\u0438\u043a\u043e\u0432 1\u20134 \u043a\u043b\u0430\u0441\u0441\u043e\u0432.<\/p>\n\n\n\n<ul class=\"post-sidebar__toc-list wp-block-list\">\n<li><a href=\"#\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435\">\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b<\/a><\/li>\n\n\n\n<li><a href=\"#\u0444\u043e\u0440\u043c\u0443\u043b\u044b\">\u0424\u043e\u0440\u043c\u0443\u043b\u044b \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/a><\/li>\n\n\n\n<li><a href=\"#\u0440\u0435\u0448\u0435\u043d\u0438\u0435\">\u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0430\u0447 \u043d\u0430 \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/a><\/li>\n\n\n\n<li><a href=\"#\u0441\u043b\u043e\u0436\u043d\u044b\u0445\">\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0441\u043b\u043e\u0436\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/a><\/li>\n\n\n\n<li><a href=\"#\u0420\u0435\u0448\u0435\u043d\u0438\u0435-\u0437\u0430\u0434\u0430\u0447-\u043d\u0430-\u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435-\u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430-\u0441\u043b\u043e\u0436\u043d\u044b\u0445-\u0444\u0438\u0433\u0443\u0440\">\u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0430\u0447 \u043d\u0430 \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u0441\u043b\u043e\u0436\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/a><\/li>\n\n\n\n<li><a href=\"#\u0432\u043e\u043f\u0440\u043e\u0441\u044b\">\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435\"><strong>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440<\/strong> \u0444\u0438\u0433\u0443\u0440\u044b<\/h2>\n\n\n\n<p>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u2014 \u044d\u0442\u043e \u0441\u0443\u043c\u043c\u0430 \u0434\u043b\u0438\u043d \u0432\u0441\u0435\u0445 \u0441\u0442\u043e\u0440\u043e\u043d \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0444\u0438\u0433\u0443\u0440\u044b. \u0415\u0441\u043b\u0438 \u043e\u0431\u043e\u0439\u0442\u0438 \u0444\u0438\u0433\u0443\u0440\u0443 \u043f\u043e \u043a\u043e\u043d\u0442\u0443\u0440\u0443 \u0438 \u0438\u0437\u043c\u0435\u0440\u0438\u0442\u044c \u0434\u043b\u0438\u043d\u0443 \u043f\u0443\u0442\u0438, \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u0441\u044f \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2.png\" alt=\"\" class=\"wp-image-12347\" width=\"290\" height=\"289\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2.png 980w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2-300x300.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2-150x150.png 150w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2-768x766.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2-695x693.png 695w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2-249x248.png 249w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/1-2-600x600.png 600w\" sizes=\"auto, (max-width: 290px) 100vw, 290px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0415\u0434\u0438\u043d\u0438\u0446\u044b \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430<\/strong><\/h3>\n\n\n\n<p>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0438\u0437\u043c\u0435\u0440\u044f\u0435\u0442\u0441\u044f \u0432 \u0442\u0435\u0445 \u0436\u0435 \u0435\u0434\u0438\u043d\u0438\u0446\u0430\u0445, \u0447\u0442\u043e \u0438 \u0434\u043b\u0438\u043d\u0430: \u043c\u0438\u043b\u043b\u0438\u043c\u0435\u0442\u0440\u044b (\u043c\u043c), \u0441\u0430\u043d\u0442\u0438\u043c\u0435\u0442\u0440\u044b (\u0441\u043c), \u043c\u0435\u0442\u0440\u044b (\u043c). \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0435\u0441\u043b\u0438 \u0434\u043b\u0438\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0440\u0430\u0432\u043d\u0430 4 \u0441\u0430\u043d\u0442\u0438\u043c\u0435\u0442\u0440\u0430, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0431\u0443\u0434\u0435\u0442 \u0438\u0437\u043c\u0435\u0440\u044f\u0442\u044c\u0441\u044f \u0432 \u0441\u0430\u043d\u0442\u0438\u043c\u0435\u0442\u0440\u0430\u0445.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-1024x361.png\" alt=\"\" class=\"wp-image-12348\" width=\"375\" height=\"132\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-1024x361.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-300x106.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-768x271.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-1536x542.png 1536w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-800x282.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-559x197.png 559w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2-440x155.png 440w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/3-2.png 1574w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u0444\u043e\u0440\u043c\u0443\u043b\u044b\"><strong>\u0424\u043e\u0440\u043c\u0443\u043b\u044b \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 <strong>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b: \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/4.png\" alt=\"\" class=\"wp-image-12349\" width=\"306\" height=\"209\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/4.png 948w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/4-300x205.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/4-768x525.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/4-800x547.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/4-363x248.png 363w\" sizes=\"auto, (max-width: 306px) 100vw, 306px\" \/><\/figure>\n\n\n\n<p>\u0427\u0442\u043e\u0431\u044b \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430, \u043d\u0443\u0436\u043d\u043e \u0441\u043b\u043e\u0436\u0438\u0442\u044c \u0434\u043b\u0438\u043d\u044b \u0432\u0441\u0435\u0445 \u0435\u0433\u043e \u0441\u0442\u043e\u0440\u043e\u043d:<\/p>\n\n\n\n<p><strong><em>P = a + b + c<\/em> <\/strong>, \u0433\u0434\u0435 <em>a<\/em>, <em>b<\/em>, \u0438 <em>c<\/em> \u2014 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/2.png\" alt=\"\" class=\"wp-image-12352\" width=\"329\" height=\"240\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/2.png 779w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/2-300x218.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/2-768x559.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/2-341x248.png 341w\" sizes=\"auto, (max-width: 329px) 100vw, 329px\" \/><\/figure>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 1. <\/strong>\u0415\u0441\u043b\u0438 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0440\u0430\u0432\u043d\u044b 3 \u0441\u043c, 4 \u0441\u043c \u0438 5 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0434\u0430\u043d\u043d\u043e\u0439 \u0444\u0438\u0433\u0443\u0440\u044b \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0432\u0435\u043d: <em>P = 3 + 4 + 5 = 12<\/em> \u0441\u043c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1-1024x918.png\" alt=\"\" class=\"wp-image-12353\" width=\"335\" height=\"300\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1-1024x918.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1-300x269.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1-768x688.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1-773x693.png 773w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1-277x248.png 277w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/5-1.png 1031w\" sizes=\"auto, (max-width: 335px) 100vw, 335px\" \/><\/figure>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 2. <\/strong>\u0415\u0441\u043b\u0438 \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a \u0438\u043c\u0435\u0435\u0442 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0434\u043b\u0438\u043d\u043e\u0439 10 \u0441\u043c, 10 \u0441\u043c \u0438 10 \u0441\u043c, \u0442\u043e \u0435\u0433\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0443\u0434\u0435\u0442: <em>P = 10 + 10 + 10 = 30 <\/em>\u0441\u043c.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udccc <strong>\u0427\u0438\u0442\u0430\u0439\u0442\u0435 \u043f\u043e \u0442\u0435\u043c\u0435: <a href=\"https:\/\/tetrika-school.ru\/blog\/kak-naiti-ploshchad-treugolnika\/\"><em>\u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u043b\u043e\u0449\u0430\u0434\u044c \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430<\/em><\/a><\/strong><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 <strong>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b: \u043a\u0432\u0430\u0434\u0440\u0430\u0442<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6-1024x1004.png\" alt=\"\" class=\"wp-image-12354\" width=\"282\" height=\"276\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6-1024x1004.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6-300x294.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6-768x753.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6-707x693.png 707w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6-253x248.png 253w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/6.png 1077w\" sizes=\"auto, (max-width: 282px) 100vw, 282px\" \/><\/figure>\n\n\n\n<p>\u041a\u0432\u0430\u0434\u0440\u0430\u0442 \u2014 \u044d\u0442\u043e \u0444\u0438\u0433\u0443\u0440\u0430, \u0443 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432\u0441\u0435 \u0447\u0435\u0442\u044b\u0440\u0435 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0440\u0430\u0432\u043d\u044b. \u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0443\u043c\u043d\u043e\u0436\u0435\u043d\u0438\u0435\u043c \u0434\u043b\u0438\u043d\u044b \u043e\u0434\u043d\u043e\u0439 \u0435\u0433\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043d\u0430 4:<\/p>\n\n\n\n<p><strong><em>P = 4a<\/em> <\/strong>, \u0433\u0434\u0435 <em>a<\/em> \u2014 \u0434\u043b\u0438\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7-1024x779.png\" alt=\"\" class=\"wp-image-12355\" width=\"312\" height=\"238\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7-1024x779.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7-300x228.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7-768x584.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7-800x608.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7-326x248.png 326w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/7.png 1415w\" sizes=\"auto, (max-width: 312px) 100vw, 312px\" \/><\/figure>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 1. <\/strong>\u0415\u0441\u043b\u0438 \u0434\u043b\u0438\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0440\u0430\u0432\u043d\u0430 6 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0431\u0443\u0434\u0435\u0442: P = 4 \u2219 6 = 24 \u0441\u043c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-1024x795.png\" alt=\"\" class=\"wp-image-12356\" width=\"322\" height=\"251\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-1024x795.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-300x233.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-768x597.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-1536x1193.png 1536w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-800x621.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8-319x248.png 319w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/8.png 1760w\" sizes=\"auto, (max-width: 322px) 100vw, 322px\" \/><\/figure>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 2. <\/strong>\u0415\u0441\u043b\u0438 \u0434\u043b\u0438\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0440\u0430\u0432\u043d\u0430 20 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0443\u0434\u0435\u0442:<\/p>\n\n\n\n<p>P = 4 \u2219 20 = 80 \u0441\u043c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3\ufe0f\u20e3 <strong>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b: \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-1024x667.png\" alt=\"\" class=\"wp-image-12357\" width=\"340\" height=\"222\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-1024x667.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-300x195.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-768x500.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-1536x1000.png 1536w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-800x521.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9-381x248.png 381w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/9.png 1851w\" sizes=\"auto, (max-width: 340px) 100vw, 340px\" \/><\/figure>\n\n\n\n<p>\u041f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a \u0438\u043c\u0435\u0435\u0442 \u0434\u0432\u0435 \u043f\u0430\u0440\u044b \u0440\u0430\u0432\u043d\u044b\u0445 \u0441\u0442\u043e\u0440\u043e\u043d. \u0427\u0442\u043e\u0431\u044b \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440, \u0441\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u0435\u043c \u0434\u043b\u0438\u043d\u044b \u0434\u0432\u0443\u0445 \u0441\u043c\u0435\u0436\u043d\u044b\u0445 \u0441\u0442\u043e\u0440\u043e\u043d \u0438 \u0443\u043c\u043d\u043e\u0436\u0430\u0435\u043c \u043d\u0430 \u0434\u0432\u0430. \u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0432\u044b\u0447\u0438\u0441\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u0444\u043e\u0440\u043c\u0443\u043b\u0435:<\/p>\n\n\n\n<p><em><strong>P = 2 \u2219 (a + b)&nbsp;<\/strong><\/em> , \u0433\u0434\u0435 <em>a <\/em>\u0438&nbsp; <em>b <\/em>\u2014 \u0434\u043b\u0438\u043d\u044b \u0441\u0442\u043e\u0440\u043e\u043d \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-1024x572.png\" alt=\"\" class=\"wp-image-12358\" width=\"342\" height=\"191\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-1024x572.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-300x167.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-768x429.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-1536x858.png 1536w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-800x447.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-444x248.png 444w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10-440x246.png 440w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/10.png 1922w\" sizes=\"auto, (max-width: 342px) 100vw, 342px\" \/><\/figure>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 1.<\/strong> \u0415\u0441\u043b\u0438 \u0434\u043b\u0438\u043d\u0430 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0440\u0430\u0432\u043d\u0430 7 \u0441\u043c, \u0430 \u0448\u0438\u0440\u0438\u043d\u0430 \u2014 3 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0431\u0443\u0434\u0435\u0442: P = 2 \u2219 (7 + 3) = 20 \u0441\u043c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-783x1024.png\" alt=\"\" class=\"wp-image-12359\" width=\"287\" height=\"375\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-783x1024.png 783w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-229x300.png 229w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-768x1005.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-1174x1536.png 1174w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-530x693.png 530w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11-190x248.png 190w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/11.png 1368w\" sizes=\"auto, (max-width: 287px) 100vw, 287px\" \/><\/figure>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 2.<\/strong> \u0415\u0441\u043b\u0438 \u0434\u043b\u0438\u043d\u0430 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 10 \u0441\u043c, \u0430 \u0448\u0438\u0440\u0438\u043d\u0430 30 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0443\u0434\u0435\u0442: P = 2 \u2219 (10 + 30) = 80 \u0441\u043c.<\/p>\n\n\n<div class=\"banner-read-recent\">\n\t\t<div class=\"banner-read-recent__inner\">\n\t\t\t\t<span class=\"banner-read-recent__title\">\u0427\u0438\u0442\u0430\u0439\u0442\u0435 \u043f\u043e \u0442\u0435\u043c\u0435:<\/span>\n\t\t\t\t<a href=\"http:\/\/blog.tetrika.school\/kak-najti-perimetr-i-ploshhad\/\" class=\"banner-read-recent__link\">\n                    \u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0438 \u043f\u043b\u043e\u0449\u0430\u0434\u044c \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0438 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430                <\/a>\n\t\t<\/div>\n<\/div>\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u0440\u0435\u0448\u0435\u043d\u0438\u0435\"><strong>\u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0430\u0447 \u043d\u0430 \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/strong><\/h2>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 1:<\/strong> \u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c\u0438 7 \u0441\u043c, 12 \u0441\u043c \u0438 15 \u0441\u043c.<\/p>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435: P = 7 + 12 + 15 = 34<\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 2: <\/strong>\u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u043e\u0439 9 \u0441\u043c.<\/p>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435: <\/em><em>P = <\/em>4 \u2219 9 = 36<em><\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 3: <\/strong>\u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441 \u0434\u043b\u0438\u043d\u043e\u0439 5 \u0441\u043c \u0438 \u0448\u0438\u0440\u0438\u043d\u043e\u0439 8 \u0441\u043c.<\/p>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435: <\/em><em>P = <\/em>2 \u2219 (5 + 8) = 26<em><\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 4: <\/strong>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0440\u0430\u0432\u0435\u043d \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0443 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u043e\u0439 8 \u0441\u043c. \u0428\u0438\u0440\u0438\u043d\u0430 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4 \u0441\u043c. \u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u0434\u043b\u0438\u043d\u0443 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430.<\/p>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435<\/em> \u2b07<\/p>\n\n\n\n<p>\u041d\u0430\u0439\u0434\u0451\u043c \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430:<em> P \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 = 4 \u2219 8 = 32<\/em> \u0441\u043c.<\/p>\n\n\n\n<p>\u0422\u0435\u043f\u0435\u0440\u044c \u043d\u0430\u043c \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u044b \u0434\u0432\u0443\u0445 \u0444\u0438\u0433\u0443\u0440: <em>P \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430 = P \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 = 32<\/em> \u0441\u043c.<\/p>\n\n\n\n<p>\u0424\u043e\u0440\u043c\u0443\u043b\u0430 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u2014<em> P \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 = 2 \u2219 (a + b) = 32 \u0441\u043c.<\/em>&nbsp;<\/p>\n\n\n\n<p>\u041f\u043e\u0434\u0441\u0442\u0430\u0432\u0438\u043c \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0432 \u0444\u043e\u0440\u043c\u0443\u043b\u0443:<em>&nbsp; 2 \u2219 (a + 4) = 32 \u0441\u043c<\/em>.<\/p>\n\n\n\n<p>\u0420\u0435\u0448\u0438\u043c \u0443\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0434\u043b\u0438\u043d\u044b <em>a<\/em>:<\/p>\n\n\n\n<p><em>2 \u2219 (a + 4) = 32<\/em><\/p>\n\n\n\n<p><em>a + 4 = 32 : 2<\/em><\/p>\n\n\n\n<p><em>\u0430 + 4 = 16<\/em><\/p>\n\n\n\n<p><em>a = 16 &#8212; 4<\/em><\/p>\n\n\n\n<p><em>a = 12<\/em><\/p>\n\n\n\n<p>\u0414\u043b\u0438\u043d\u0430 \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u2014 12 \u0441\u043c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u0441\u043b\u043e\u0436\u043d\u044b\u0445\"><strong>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0441\u043b\u043e\u0436\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 <strong>\u0424\u0438\u0433\u0443\u0440\u044b \u0441 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c\u0438<\/strong><\/h3>\n\n\n\n<p>\u0414\u043b\u044f \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u0444\u0438\u0433\u0443\u0440 \u0441 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c\u0438, \u043d\u0443\u0436\u043d\u043e \u0441\u043b\u043e\u0436\u0438\u0442\u044c \u0434\u043b\u0438\u043d\u044b \u0432\u0441\u0435\u0445 \u0441\u0442\u043e\u0440\u043e\u043d. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0434\u043b\u044f \u043f\u044f\u0442\u0438\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441 \u0434\u043b\u0438\u043d\u0430\u043c\u0438 \u0441\u0442\u043e\u0440\u043e\u043d 2 \u0441\u043c, 3 \u0441\u043c, 4 \u0441\u043c, 5 \u0441\u043c \u0438 6 \u0441\u043c:<\/p>\n\n\n\n<p><em>P = 2 +3 + 4 +5 + 6 = 20<\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 1: <\/strong>\u0435\u0441\u043b\u0438 \u0444\u0438\u0433\u0443\u0440\u0430 \u0438\u043c\u0435\u0435\u0442 \u0441\u0442\u043e\u0440\u043e\u043d\u044b 5 \u0441\u043c, 7 \u0441\u043c, 3 \u0441\u043c, 4 \u0441\u043c \u0438 6 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b \u0431\u0443\u0434\u0435\u0442:<\/p>\n\n\n\n<p><em>P = 5 + 7 + 3 + 4 + 6 = 25<\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 2: <\/strong>\u0435\u0441\u043b\u0438 \u043c\u043d\u043e\u0433\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a \u0438\u043c\u0435\u0435\u0442 \u0441\u0442\u043e\u0440\u043e\u043d\u044b 3 \u0441\u043c, 5 \u0441\u043c, 7 \u0441\u043c, 2 \u0441\u043c \u0438 4 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0443\u0434\u0435\u0442:<\/p>\n\n\n\n<p><em>P = 3 + 5 + 7 + 2 + 4 = 21<\/em> \u0441\u043c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 <strong>\u0424\u0438\u0433\u0443\u0440\u044b \u0441 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u043c\u0438 \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c\u0438<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12-1024x786.png\" alt=\"\" class=\"wp-image-12360\" width=\"304\" height=\"233\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12-1024x786.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12-300x230.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12-768x589.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12-800x614.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12-323x248.png 323w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/12.png 1251w\" sizes=\"auto, (max-width: 304px) 100vw, 304px\" \/><\/figure>\n\n\n\n<p>\u0414\u043b\u044f \u0444\u0438\u0433\u0443\u0440 \u0441 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u043c\u0438 \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c\u0438, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u0435 \u043c\u043d\u043e\u0433\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0438, \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0443\u043c\u043d\u043e\u0436\u0435\u043d\u0438\u0435\u043c \u0434\u043b\u0438\u043d\u044b \u043e\u0434\u043d\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043d\u0430 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0441\u0442\u043e\u0440\u043e\u043d. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0434\u043b\u044f \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0448\u0435\u0441\u0442\u0438\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441 \u0434\u043b\u0438\u043d\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b 4 \u0441\u043c: <em>P = 6 \u2219 4 = 24 \u0441\u043c.<\/em><\/p>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 1: <\/strong>\u0435\u0441\u043b\u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u043e\u0441\u044c\u043c\u0438\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a \u0438\u043c\u0435\u0435\u0442 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043f\u043e 3 \u0441\u043c, \u0442\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0443\u0434\u0435\u0442:<em> P = 8 \u2219 3 = 24 \u0441\u043c.<\/em><\/p>\n\n\n\n<p><strong>\u041f\u0440\u0438\u043c\u0435\u0440 2: <\/strong>\u0434\u043b\u044f \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u044f\u0442\u0438\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441 \u0434\u043b\u0438\u043d\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b 5 \u0441\u043c \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0443\u0434\u0435\u0442: <em>P = 5 \u2219 5 = 25 \u0441\u043c.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u0420\u0435\u0448\u0435\u043d\u0438\u0435-\u0437\u0430\u0434\u0430\u0447-\u043d\u0430-\u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435-\u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430-\u0441\u043b\u043e\u0436\u043d\u044b\u0445-\u0444\u0438\u0433\u0443\u0440\"><strong>\u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0430\u0447 \u043d\u0430 \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u0441\u043b\u043e\u0436\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440<\/strong><\/h2>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 1: <\/strong>\u041a\u0430\u043a\u043e\u0439 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0443 \u0444\u0438\u0433\u0443\u0440\u044b \u0441 \u0434\u043b\u0438\u043d\u0430\u043c\u0438 \u0441\u0442\u043e\u0440\u043e\u043d 8 \u0441\u043c, 5 \u0441\u043c, 9 \u0441\u043c, 6 \u0441\u043c \u0438 7 \u0441\u043c?<\/p>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435:<\/em> <em>P = 8 + 5 + 9 + 6 + 7 = 35<\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 2:<\/strong> \u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0451\u043d\u043d\u043e\u0439 \u0444\u0438\u0433\u0443\u0440\u044b.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-1024x742.png\" alt=\"\" class=\"wp-image-12361\" width=\"324\" height=\"234\" srcset=\"http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-1024x742.png 1024w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-300x218.png 300w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-768x557.png 768w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-1536x1114.png 1536w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-800x580.png 800w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13-342x248.png 342w, http:\/\/blog.tetrika.school\/wp-content\/uploads\/2024\/07\/13.png 1691w\" sizes=\"auto, (max-width: 324px) 100vw, 324px\" \/><\/figure>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435:<\/em> <em>P = 4 + 6 + 7 + 5 + 10 + 8 = 40<\/em> \u0441\u043c.<\/p>\n\n\n\n<p><strong>\u0417\u0430\u0434\u0430\u0447\u0430 3:<\/strong> \u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0435\u043c\u0438\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u043e\u0439 9 \u0441\u043c.<\/p>\n\n\n\n<p><em>\u0420\u0435\u0448\u0435\u043d\u0438\u0435:<\/em> <em>P = 7 \u2219 9 = 63 \u0441\u043c. <\/em>&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u0432\u043e\u043f\u0440\u043e\u0441\u044b\"><strong>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b: \u0447\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/strong><\/h2>\n\n\n\n<p><strong><em>1. \u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u043c\u043d\u043e\u0433\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430?<\/em><\/strong><\/p>\n\n\n\n<p>\u041d\u0443\u0436\u043d\u043e \u0441\u043b\u043e\u0436\u0438\u0442\u044c \u0434\u043b\u0438\u043d\u044b \u0432\u0441\u0435\u0445 \u0435\u0433\u043e \u0441\u0442\u043e\u0440\u043e\u043d. \u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u043a\u0430\u0436\u0434\u043e\u0439 \u0444\u0438\u0433\u0443\u0440\u044b \u0440\u0430\u0432\u0435\u043d \u0441\u0443\u043c\u043c\u0435 \u0435\u0451 \u0441\u0442\u043e\u0440\u043e\u043d.<\/p>\n\n\n\n<p><strong><em>2. \u041c\u043e\u0436\u043d\u043e \u043b\u0438 \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0431\u0435\u0437 \u0437\u043d\u0430\u043d\u0438\u044f \u0432\u0441\u0435\u0445 \u0441\u0442\u043e\u0440\u043e\u043d?<\/em><\/strong><\/p>\n\n\n\n<p>\u041d\u0435\u0442, \u043d\u0443\u0436\u043d\u043e \u0437\u043d\u0430\u0442\u044c \u0434\u043b\u0438\u043d\u0443 \u043a\u0430\u0436\u0434\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b, \u0447\u0442\u043e\u0431\u044b \u0432\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u044c \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440. \u0415\u0441\u043b\u0438 \u0441\u0442\u043e\u0440\u043e\u043d \u0444\u0438\u0433\u0443\u0440\u044b \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0438 \u043e\u0434\u043d\u0430 \u0438\u0437 \u043d\u0438\u0445 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u0430, \u0442\u043e \u0435\u0451 \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0434\u0440\u0443\u0433\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445.<\/p>\n\n\n\n<p><strong>3. <\/strong><strong><em>\u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b, \u0435\u0441\u043b\u0438 \u043e\u0434\u043d\u0430 \u0438\u0437 \u0441\u0442\u043e\u0440\u043e\u043d \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u0430?<\/em><\/strong><\/p>\n\n\n\n<p>\u0415\u0441\u043b\u0438 \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b \u0432\u0441\u0435 \u0441\u0442\u043e\u0440\u043e\u043d\u044b, \u043a\u0440\u043e\u043c\u0435 \u043e\u0434\u043d\u043e\u0439, \u0438 \u0435\u0441\u0442\u044c \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u0444\u0438\u0433\u0443\u0440 \u2014 \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u0443\u044e \u0441\u0442\u043e\u0440\u043e\u043d\u0443 \u0438 \u0437\u0430\u0442\u0435\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u044c \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440.<\/p>\n\n\n\n<p><strong><em>4. \u0427\u0442\u043e \u0434\u0435\u043b\u0430\u0442\u044c, \u0435\u0441\u043b\u0438 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0444\u0438\u0433\u0443\u0440\u044b \u0437\u0430\u0434\u0430\u043d\u044b \u0432 \u0440\u0430\u0437\u043d\u044b\u0445 \u0435\u0434\u0438\u043d\u0438\u0446\u0430\u0445 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f?<\/em><\/strong><\/p>\n\n\n\n<p>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440 \u0438\u0449\u0443\u0442\u0441\u044f \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c: \u043d\u0443\u0436\u043d\u043e \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u0432\u0441\u0435 \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u043a \u043e\u0434\u043d\u043e\u0439 \u0435\u0434\u0438\u043d\u0438\u0446\u0435 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f, \u0430 \u0437\u0430\u0442\u0435\u043c \u0441\u043b\u043e\u0436\u0438\u0442\u044c \u0438\u0445 \u0434\u043b\u0438\u043d\u044b \u0434\u043b\u044f \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430.<\/p>\n\n\n<div class=\"post-item__content-cta\">\n    <svg class=\"post-item__content-cta-decor post-item__content-cta-decor-circle\" width=\"71\" height=\"71\"\n         viewBox=\"0 0 71 71\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n        <circle opacity=\"0.1\" cx=\"35.5\" cy=\"35.5\" r=\"35.5\" fill=\"white\"\/>\n    <\/svg>\n\n    <svg class=\"post-item__content-cta-decor post-item__content-cta-decor-big\" width=\"479\" height=\"346\"\n         viewBox=\"0 0 479 346\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n        <path opacity=\"0.2\"\n              d=\"M19.7236 345.522C16.7136 345.319 13.6925 344.386 10.8783 342.641C1.31626 336.702 -2.2368 323.66 2.96125 313.559C5.59279 308.444 8.19282 303.36 10.7936 298.243C42.2284 236.493 74.7666 172.634 143.026 140.598C195.358 116.053 259.397 114.727 322.448 136.159C327.998 124.427 333.718 113.236 339.113 102.685C368.329 45.581 408.213 10.303 454.476 0.729135C465.091 -1.49708 475.686 6.06692 478.08 17.6081C480.474 29.1493 473.833 40.2779 463.188 42.4691C419.183 51.6003 390.301 91.9223 373.823 124.152C369.241 133.104 364.529 142.313 359.964 151.762C389.233 166.246 449.807 201.833 456.356 250.671C458.709 268.23 454.952 294.373 423.691 319.186C412.023 328.453 381.332 349.302 348.462 342.745C331.17 339.294 316.443 328.671 305.819 312.009C296.729 297.765 291.837 279.638 291.221 258.161C290.386 228.895 296.809 200.881 306.196 174.788C254.088 158.297 202.046 159.773 159.781 179.607C103.335 206.09 75.2499 261.22 45.5382 319.58C42.9057 324.728 40.2722 329.909 37.6398 335.057C33.9688 342.185 26.9116 345.975 19.7245 345.489L19.7236 345.522ZM343.606 189.789C335.462 212.03 330.067 235.052 330.696 258.316C331.049 271.34 333.57 281.6 338.144 288.79C342.6 295.773 347.757 299.661 354.398 300.971C366.579 303.415 383.889 297.143 399.582 284.675C412.571 274.372 418.532 264.488 417.305 255.308C414.771 236.48 384.24 209.54 343.576 189.754L343.606 189.789Z\"\n              fill=\"white\"\/>\n    <\/svg>\n\n    <div class=\"post-item__content-cta-content\">\n        <div class=\"content-cta__title\">\n            \u0412\u043b\u044e\u0431\u043b\u044f\u0435\u043c \u0432 \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u0435 \u043d\u0430 \u0443\u0440\u043e\u043a\u0430\u0445 \u0432 \u043e\u043d\u043b\u0430\u0439\u043d-\u0448\u043a\u043e\u043b\u0435 \u0422\u0435\u0442\u0440\u0438\u043a\u0430\n            <svg width=\"25\" height=\"33\" viewBox=\"0 0 25 33\" fill=\"none\"\n                 xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                <path d=\"M11.6329 16.4974C11.0406 11.2743 5.82514 -1.70212 2.99927 10.1877C1.50398 16.4792 3.36881 22.3208 4.40326 28.4598C4.55061 29.3342 4.19489 32.4029 5.1574 31.2129C8.66347 26.8785 12.6188 22.9592 16.2706 18.757C19.5209 15.0169 22.1064 11.0522 22.5192 6.01898C22.5889 5.16965 22.9303 1.38202 21.1583 1.66075C16.6287 2.37326 13.7694 8.45402 11.4514 11.9226\"\n                      stroke=\"white\" stroke-width=\"3\" stroke-linecap=\"round\"\/>\n            <\/svg>\n        <\/div>\n\n        <div class=\"content-cta__title-subtitle\">\n            \u041e\u0441\u0442\u0430\u0432\u044c\u0442\u0435 \u0437\u0430\u044f\u0432\u043a\u0443 \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u0435 \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u044b\u0439 \u0432\u0432\u043e\u0434\u043d\u044b\u0439 \u0443\u0440\u043e\u043a\n        <\/div>\n\n        <button id=\"content_cta__btn\" class=\"content-cta__btn\" data-action=\"cta-modal\">\u041e\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0437\u0430\u044f\u0432\u043a\u0443\n        <\/button>\n    <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u041f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u2014 \u044d\u0442\u043e \u0432\u0430\u0436\u043d\u043e\u0435 \u043f\u043e\u043d\u044f\u0442\u0438\u0435 \u0432 \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u0438, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0443\u0447\u0430\u0449\u0438\u0435\u0441\u044f \u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0439 \u0448\u043a\u043e\u043b\u044b \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0442 \u0438\u0437\u0443\u0447\u0430\u0442\u044c \u0441 \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u0444\u0438\u0433\u0443\u0440. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043c\u044b \u0440\u0430\u0437\u0431\u0435\u0440\u0451\u043c, \u0447\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440, \u043a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b \u0438 \u043a\u0430\u043a \u0435\u0433\u043e \u0432\u044b\u0447\u0438\u0441\u043b\u044f\u0442\u044c \u0434\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440. \u041c\u044b \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u0432 \u0437\u0430\u0434\u0430\u0447 \u0438 \u043e\u0442\u0432\u0435\u0442\u0438\u043c \u043d\u0430 \u0447\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0433\u0443\u0442 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u0443\u0442\u044c \u0443 \u0443\u0447\u0435\u043d\u0438\u043a\u043e\u0432 1\u20134 \u043a\u043b\u0430\u0441\u0441\u043e\u0432. \u0427\u0442\u043e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21215,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[93],"tags":[],"class_list":["post-12124","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-textbooks"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b &#8212; \u0411\u043b\u043e\u0433 \u0422\u0435\u0442\u0440\u0438\u043a\u0438<\/title>\n<meta name=\"description\" content=\"\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440, \u043a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 \u0444\u0438\u0433\u0443\u0440\u044b \u0438 \u043a\u0430\u043a \u0435\u0433\u043e \u0432\u044b\u0447\u0438\u0441\u043b\u044f\u0442\u044c \u0434\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0444\u0438\u0433\u0443\u0440, \u2014 \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0435\u043c\u0441\u044f \u0432 \u0441\u0442\u0430\u0442\u044c\u0435. \u0414\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0440\u0435\u0448\u0438\u043c \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0437\u0430\u0434\u0430\u0447.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/blog.tetrika.school\/perimetr-figury\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"\u041a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440 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