{"id":860,"date":"2025-03-19T13:09:18","date_gmt":"2025-03-19T06:09:18","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=860"},"modified":"2025-06-12T00:52:59","modified_gmt":"2025-06-11T17:52:59","slug":"tam-giac-co-1-goc-120-do-la-tam-giac-gi","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/","title":{"rendered":"Tam gi\u00e1c c\u00f3 1 g\u00f3c 120 \u0111\u1ed9 l\u00e0 tam gi\u00e1c g\u00ec?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/#Tam_giac_tu_la_gi\" >Tam gi\u00e1c t\u00f9 l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/#Phan_biet_tam_giac_tu_voi_cac_loai_tam_giac_khac\" >Ph\u00e2n bi\u1ec7t tam gi\u00e1c t\u00f9 v\u1edbi c\u00e1c lo\u1ea1i tam gi\u00e1c kh\u00e1c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/#Tam_giac_tu_can\" >Tam gi\u00e1c t\u00f9 c\u00e2n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/#Tinh_chat_cua_tam_giac_tu\" >T\u00ednh ch\u1ea5t c\u1ee7a tam gi\u00e1c t\u00f9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/#Cong_thuc_tinh_dien_tich_tam_giac_tu\" >C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c t\u00f9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/tam-giac-co-1-goc-120-do-la-tam-giac-gi\/#Cong_thuc_tinh_chu_vi_tam_giac_tu\" >C\u00f4ng th\u1ee9c t\u00ednh chu vi tam gi\u00e1c t\u00f9<\/a><\/li><\/ul><\/nav><\/div>\n<p>Tam gi\u00e1c c\u00f3 m\u1ed9t g\u00f3c 120 \u0111\u1ed9 l\u00e0 <strong>tam gi\u00e1c t\u00f9<\/strong>. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i \u0111\u00e1p chi ti\u1ebft v\u1ec1 lo\u1ea1i tam gi\u00e1c n\u00e0y, c\u0169ng nh\u01b0 ph\u00e2n bi\u1ec7t n\u00f3 v\u1edbi c\u00e1c lo\u1ea1i tam gi\u00e1c kh\u00e1c.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ckconitsha.com\/vn\/wp-content\/uploads\/2025\/03\/tam-giac-tu.jpg\" alt=\"Tam gi\u00e1c t\u00f9\" width=\"728\" height=\"525\" \/><em class=\"cap-ai\">Tam gi\u00e1c t\u00f9<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tam_giac_tu_la_gi\"><\/span>Tam gi\u00e1c t\u00f9 l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tam gi\u00e1c t\u00f9 l\u00e0 tam gi\u00e1c c\u00f3 <strong>m\u1ed9t g\u00f3c l\u1edbn h\u01a1n 90 \u0111\u1ed9 v\u00e0 nh\u1ecf h\u01a1n 180 \u0111\u1ed9<\/strong>.  Hai g\u00f3c c\u00f2n l\u1ea1i c\u1ee7a tam gi\u00e1c t\u00f9 \u0111\u1ec1u l\u00e0 g\u00f3c nh\u1ecdn (nh\u1ecf h\u01a1n 90 \u0111\u1ed9).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ckconitsha.com\/vn\/wp-content\/uploads\/2025\/03\/cac-loai-tam-giac.jpg\" alt=\"C\u00e1c lo\u1ea1i tam gi\u00e1c\" width=\"700\" height=\"326\" \/><em class=\"cap-ai\">C\u00e1c lo\u1ea1i tam gi\u00e1c<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Phan_biet_tam_giac_tu_voi_cac_loai_tam_giac_khac\"><\/span>Ph\u00e2n bi\u1ec7t tam gi\u00e1c t\u00f9 v\u1edbi c\u00e1c lo\u1ea1i tam gi\u00e1c kh\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u1ef1a v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a g\u00f3c, ta c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i tam gi\u00e1c th\u00e0nh ba lo\u1ea1i ch\u00ednh:<\/p>\n<ul>\n<li><strong>Tam gi\u00e1c nh\u1ecdn:<\/strong> C\u1ea3 ba g\u00f3c \u0111\u1ec1u nh\u1ecf h\u01a1n 90 \u0111\u1ed9.<\/li>\n<li><strong>Tam gi\u00e1c vu\u00f4ng:<\/strong> C\u00f3 m\u1ed9t g\u00f3c b\u1eb1ng 90 \u0111\u1ed9.<\/li>\n<li><strong>Tam gi\u00e1c t\u00f9:<\/strong> C\u00f3 m\u1ed9t g\u00f3c l\u1edbn h\u01a1n 90 \u0111\u1ed9 v\u00e0 nh\u1ecf h\u01a1n 180 \u0111\u1ed9.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Tam_giac_tu_can\"><\/span>Tam gi\u00e1c t\u00f9 c\u00e2n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed9t tam gi\u00e1c v\u1eeba l\u00e0 tam gi\u00e1c t\u00f9 v\u1eeba l\u00e0 tam gi\u00e1c c\u00e2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>tam gi\u00e1c t\u00f9 c\u00e2n<\/strong>.  \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 tam gi\u00e1c \u0111\u00f3 c\u00f3 m\u1ed9t g\u00f3c l\u1edbn h\u01a1n 90 \u0111\u1ed9, v\u00e0 hai g\u00f3c c\u00f2n l\u1ea1i b\u1eb1ng nhau (v\u00e0 \u0111\u1ec1u nh\u1ecf h\u01a1n 90 \u0111\u1ed9). V\u00ed d\u1ee5, m\u1ed9t tam gi\u00e1c c\u00f3 c\u00e1c g\u00f3c 30 \u0111\u1ed9, 30 \u0111\u1ed9 v\u00e0 120 \u0111\u1ed9 l\u00e0 m\u1ed9t tam gi\u00e1c t\u00f9 c\u00e2n.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ckconitsha.com\/vn\/wp-content\/uploads\/2025\/03\/tam-giac-tu-can.jpg\" alt=\"Tam gi\u00e1c t\u00f9 c\u00e2n\" width=\"800\" height=\"500\" \/><em class=\"cap-ai\">Tam gi\u00e1c t\u00f9 c\u00e2n<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tinh_chat_cua_tam_giac_tu\"><\/span>T\u00ednh ch\u1ea5t c\u1ee7a tam gi\u00e1c t\u00f9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>C\u00f3 m\u1ed9t g\u00f3c t\u00f9.<\/li>\n<li>Hai g\u00f3c c\u00f2n l\u1ea1i l\u00e0 g\u00f3c nh\u1ecdn.<\/li>\n<li>C\u1ea1nh \u0111\u1ed1i di\u1ec7n v\u1edbi g\u00f3c t\u00f9 l\u00e0 c\u1ea1nh d\u00e0i nh\u1ea5t.<\/li>\n<li>T\u00e2m \u0111\u01b0\u1eddng tr\u00f2n ngo\u1ea1i ti\u1ebfp tam gi\u00e1c t\u00f9 n\u1eb1m ngo\u00e0i tam gi\u00e1c.<\/li>\n<li>Kh\u00f4ng th\u1ec3 c\u00f3 tam gi\u00e1c t\u00f9 n\u00e0o v\u1eeba l\u00e0 tam gi\u00e1c \u0111\u1ec1u, v\u1eeba l\u00e0 tam gi\u00e1c vu\u00f4ng.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cong_thuc_tinh_dien_tich_tam_giac_tu\"><\/span>C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c t\u00f9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c t\u00f9 c\u0169ng gi\u1ed1ng nh\u01b0 c\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch c\u1ee7a c\u00e1c lo\u1ea1i tam gi\u00e1c kh\u00e1c:<\/p>\n<p><strong>Di\u1ec7n t\u00edch = (1\/2) <em> \u0111\u00e1y <\/em> chi\u1ec1u cao<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ckconitsha.com\/vn\/wp-content\/uploads\/2025\/03\/cong-thuc-tinh-dien-tich.jpg\" alt=\"C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch\" width=\"728\" height=\"525\" \/><em class=\"cap-ai\">C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cong_thuc_tinh_chu_vi_tam_giac_tu\"><\/span>C\u00f4ng th\u1ee9c t\u00ednh chu vi tam gi\u00e1c t\u00f9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Chu vi c\u1ee7a tam gi\u00e1c t\u00f9 \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng t\u1ed5ng \u0111\u1ed9 d\u00e0i ba c\u1ea1nh c\u1ee7a n\u00f3.<\/p>\n<p>V\u1eady, n\u1ebfu b\u1ea1n g\u1eb7p m\u1ed9t tam gi\u00e1c c\u00f3 m\u1ed9t g\u00f3c 120 \u0111\u1ed9, th\u00ec \u0111\u00f3 ch\u00ednh l\u00e0 tam gi\u00e1c t\u00f9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tam gi\u00e1c c\u00f3 m\u1ed9t g\u00f3c 120 \u0111\u1ed9 l\u00e0 tam gi\u00e1c t\u00f9. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i \u0111\u00e1p chi ti\u1ebft v\u1ec1 lo\u1ea1i tam gi\u00e1c n\u00e0y, c\u0169ng nh\u01b0 ph\u00e2n bi\u1ec7t n\u00f3 v\u1edbi c\u00e1c lo\u1ea1i tam gi\u00e1c kh\u00e1c. Tam gi\u00e1c t\u00f9 Tam gi\u00e1c t\u00f9 l\u00e0 g\u00ec? Tam gi\u00e1c t\u00f9 l\u00e0 tam gi\u00e1c c\u00f3 m\u1ed9t g\u00f3c l\u1edbn h\u01a1n 90&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-860","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=860"}],"version-history":[{"count":1,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/860\/revisions"}],"predecessor-version":[{"id":926,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/860\/revisions\/926"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}