{"id":4696,"date":"2020-04-21T09:45:10","date_gmt":"2020-04-21T02:45:10","guid":{"rendered":"https:\/\/bacdau.vn\/?post_type=kb&p=4696"},"modified":"2020-04-22T20:56:11","modified_gmt":"2020-04-22T13:56:11","slug":"tam-giac-can-vuong-deu","status":"publish","type":"kb","link":"https:\/\/bacdau.vn\/kb\/tam-giac-can-vuong-deu\/","title":{"rendered":"Tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n, tam gi\u00e1c \u0111\u1ec1u d\u1ec5 hi\u1ec3u nh\u1ea5t"},"content":{"rendered":"

Em \u0111ang gi\u1ea3i b\u00e0i t\u1eadp h\u00ecnh h\u1ecdc nh\u01b0ng l\u1ee1 qu\u00ean ki\u1ebfn th\u1ee9c v\u1ec1<\/span> tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n v\u00e0 tam gi\u00e1c \u0111\u1ec1u<\/b>. \u0110\u1eebng lo l\u1eafng, bacdau.vn s\u1ebd gi\u00fap c\u00e1c em t\u1ed5ng h\u1ee3p l\u1ea1i \u0111\u1ea7y \u0111\u1ee7 ki\u1ebfn th\u1ee9c sao cho ph\u00f9 h\u1ee3p v\u1edbi vi\u1ec7c \u00f4n t\u1eadp nh\u00e9.<\/span><\/p>\n

Tr\u01b0\u1edbc h\u1ebft h\u00e3y \u0111\u1ebfn v\u1edbi \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u00e9.<\/span><\/p>\n

C\u00e1c kh\u00e1i ni\u1ec7m t\u1ed5ng quan v\u1ec1 tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n, tam gi\u00e1c \u0111\u1ec1u<\/span><\/h2>\n

\u0110\u1ec3 hi\u1ec3u v\u00e0 gi\u1ea3i quy\u1ebft t\u1ed1t m\u1ecdi b\u00e0i to\u00e1n h\u00ecnh h\u1ecdc, c\u00e1c em ph\u1ea3i n\u1eafm r\u00f5 ki\u1ebfn th\u1ee9c c\u0169ng nh\u01b0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh c\u1ee7a ch\u00fang. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c kh\u00e1i ni\u1ec7m v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n, tam gi\u00e1c \u0111\u1ec1u<\/strong>.<\/span><\/p>\n

Tam gi\u00e1c vu\u00f4ng<\/span><\/h3>\n

V\u1ec1 \u0111\u1ecbnh ngh\u0129a, tam gi\u00e1c vu\u00f4ng<\/strong> \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 tam gi\u00e1c c\u00f3 m\u1ed9t trong ba g\u00f3c l\u00e0 g\u00f3c vu\u00f4ng ( c\u00f3 \u00edt nh\u1ea5t m\u1ed9t g\u00f3c 90 \u0111\u1ed9).<\/span><\/p>\n

<\/p>\n

V\u1ec1 t\u00ednh ch\u1ea5t :<\/span><\/p>\n

M\u1ed9t trong nh\u1eefng t\u00ednh ch\u1ea5t c\u1ea7n nh\u1edb nh\u1ea5t c\u1ee7a tam gi\u00e1c vu\u00f4ng<\/strong> l\u00e0 trong m\u1ed9t tam gi\u00e1c vu\u00f4ng th\u00ec lu\u00f4n c\u00f3 2 g\u00f3c ph\u1ee5 nhau ( t\u1ed5ng hai g\u00f3c b\u1eb1ng 90 \u0111\u1ed9).<\/span><\/p>\n

M\u1ed9t t\u00ednh ch\u1ea5t \u0111\u00e1ng nh\u1edb kh\u00e1c v\u1ec1 tam gi\u00e1c vu\u00f4ng<\/strong> l\u00e0 trong tam gi\u00e1c vu\u00f4ng c\u00f3 hai \u0111\u01b0\u1eddng cao ch\u00ednh l\u00e0 hai c\u1ea1nh c\u1ee7a g\u00f3c vu\u00f4ng. T\u00ednh ch\u1ea5t n\u00e0y s\u1ebd h\u1ed7 tr\u1ee3 r\u1ea5t nhi\u1ec1u cho c\u00e1c em trong vi\u1ec7c t\u00ednh di\u1ec7n t\u00edch h\u00ecnh tam gi\u00e1c.<\/span><\/p>\n

Tam gi\u00e1c c\u00e2n<\/span><\/h3>\n

X\u00e9t v\u1ec1 kh\u00e1i ni\u1ec7m, tam gi\u00e1c c\u00e2n l\u00e0 tam gi\u00e1c m\u00e0 n\u00f3 ch\u1ee9a 2 c\u1ea1nh c\u00f3 \u0111\u1ed9 d\u00e0i b\u1eb1ng nhau.<\/span><\/p>\n

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V\u1ec1 t\u00ednh ch\u1ea5t:\u00a0<\/span><\/p>\n

T\u1eeb kh\u00e1i ni\u1ec7m c\u1ee7a tam gi\u00e1c c\u00e2n ta c\u00f3 th\u1ec3 suy ra h\u1ec7 qu\u1ea3. Trong m\u1ed9t tam gi\u00e1c c\u00e2n s\u1ebd c\u00f3 2 g\u00f3c b\u1eb1ng nhau. Trong ch\u1ee9ng minh tam gi\u00e1c c\u00e2n, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ee9ng minh tam gi\u00e1c \u0111\u00f3 c\u00f3 2 c\u1ea1nh b\u1eb1ng nhau ho\u1eb7c c\u00f3 2 g\u00f3c b\u1eb1ng nhau. Tr\u00ean th\u1ef1c t\u1ebf c\u00e1c b\u00e0i to\u00e1n ch\u1ee9ng minh tam gi\u00e1c c\u00e2n theo g\u00f3c chi\u1ebfm \u0111a s\u1ed1.<\/span><\/p>\n

Tam gi\u00e1c \u0111\u1ec1u\u00a0<\/span><\/h3>\n

<\/p>\n

X\u00e9t m\u1ed9t c\u00e1ch t\u1ed5ng quan tam gi\u00e1c \u0111\u1ec1u c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i tam gi\u00e1c c\u00e2n nh\u01b0ng c\u00f3 \u0111i\u1ec3m kh\u00e1c l\u00e0 tam gi\u00e1c c\u00e2n n\u00e0y ph\u1ea3i c\u00f3 \u00edt nh\u1ea5t 2 g\u00f3c b\u1eb1ng nhau v\u00e0 b\u1eb1ng 60 \u0111\u1ed9.\u00a0<\/span><\/p>\n

\u0110\u1ecbnh ngh\u0129a v\u1ec1 tam gi\u00e1c \u0111\u1ec1u l\u00e0 tam gi\u00e1c c\u00f3 3 c\u1ea1nh b\u1eb1ng nhau.<\/span><\/p>\n

V\u1ec1 t\u00ednh ch\u1ea5t: Tam gi\u00e1c \u0111\u1ec1u s\u1ebd c\u00f3 3 c\u1ea1nh b\u1eb1ng nhau, 3 g\u00f3c b\u1eb1ng nhau. \u0110\u1ec3 ch\u1ee9ng minh m\u1ed9t tam gi\u00e1c l\u00e0 tam gi\u00e1c \u0111\u1ec1u b\u1ea1n ch\u1ec9 c\u1ea7n ch\u1ee9ng minh n\u00f3 c\u00f3 s\u1edf h\u1eefu 3 c\u1ea1nh c\u00f3 c\u00f9ng \u0111\u1ed9 d\u00e0i ho\u1eb7c ch\u1ee9ng minh n\u00f3 l\u00e0 tam gi\u00e1c c\u00f3 3 g\u00f3c b\u1eb1ng nhau. M\u1ed9t c\u00e1ch ti\u1ec7n h\u01a1n b\u1ea1n c\u00f3 th\u1ec3 ch\u1ee9ng minh tam gi\u00e1c \u0111\u00f3 l\u00e0 tam gi\u00e1c c\u00e2n v\u00e0 c\u00f3 m\u1ed9t g\u00f3c b\u1eb1ng 60 \u0111\u1ed9.<\/span><\/p>\n

\u0110\u00e2y l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m v\u00e0 t\u00ednh ch\u1ea5t n\u1ec1n t\u1ea3ng v\u1ec1 <\/span>tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n, v\u00e0 tam gi\u00e1c \u0111\u1ec1u.<\/b> Ti\u1ebfp theo c\u00e1c em h\u00e3y \u0111\u1ebfn v\u1edbi nh\u1eefng c\u00f4ng th\u1ee9c ri\u00eang c\u1ee7a ch\u00fang nh\u00e9.<\/span><\/p>\n

C\u00e1c c\u00f4ng th\u1ee9c trong gi\u1ea3i b\u00e0i to\u00e1n v\u1ec1 tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n, tam gi\u00e1c \u0111\u1ec1u<\/span><\/h2>\n

C\u00f4ng th\u1ee9c c\u1ee7a Tam gi\u00e1c vu\u00f4ng<\/span><\/h3>\n

<\/p>\n

C\u00f4ng th\u1ee9c c\u1ee7a Tam gi\u00e1c c\u00e2n<\/span><\/h3>\n

<\/p>\n

C\u00f4ng th\u1ee9c c\u1ee7a Tam gi\u00e1c \u0111\u1ec1u<\/span><\/h3>\n

\"tam<\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ki\u1ebfn th\u1ee9c c\u00e1c em c\u1ea7n n\u1eafm ch\u1eafc \u0111\u1ec3 gi\u1ea3i c\u00e1c b\u00e0i to\u00e1n h\u00ecnh h\u1ecdc v\u1ec1 <\/span>tam gi\u00e1c vu\u00f4ng, tam gi\u00e1c c\u00e2n, tam gi\u00e1c \u0111\u1ec1u<\/b>. Ch\u00fac c\u00e1c em h\u1ecdc th\u1eadt t\u1ed1t!!!<\/span><\/p>\n

Xem th\u00eam: C\u00e1ch t\u00ednh n\u1ed3ng \u0111\u1ed9 mol trong h\u00f3a h\u1ecdc<\/a><\/span><\/p>\n

 <\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

Em \u0111ang gi\u1ea3i b\u00e0i t\u1eadp h\u00ecnh h\u1ecdc nh\u01b0ng l\u1ee1 qu\u00ean ki\u1ebfn th\u1ee9c v\u1ec1 tam gi\u00e1c vu\u00f4ng, c\u00e2n, \u0111\u1ec1u. \u0110\u1eebng lo, bacdau.vn s\u1ebd t\u1ed5ng h\u1ee3p l\u1ea1i \u0111\u1ea7y \u0111\u1ee7 ki\u1ebfn th\u1ee9c gi\u00fap em.<\/p>\n","protected":false},"author":1,"featured_media":4697,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"kbtopic":[764],"kbtag":[766],"_links":{"self":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kb\/4696"}],"collection":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/comments?post=4696"}],"version-history":[{"count":0,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kb\/4696\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/media\/4697"}],"wp:attachment":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/media?parent=4696"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kbtopic?post=4696"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kbtag?post=4696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}