H\u00ecnh thoi c\u00f3 t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a h\u00ecnh b\u00ecnh h\u00e0nh. Ngo\u00e0i ra h\u00ecnh thoi c\u00f2n c\u00f3 t\u00ednh ch\u1ea5t \u0111\u00f3 l\u00e0 hai \u0111\u01b0\u1eddng ch\u00e9o vu\u00f4ng g\u00f3c v\u1edbi nhau, hai \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 hai \u0111\u01b0\u1eddng ph\u00e2n gi\u00e1c c\u1ee7a c\u00e1c g\u00f3c h\u00ecnh thoi.<\/p>\n

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T\u1ee9 gi\u00e1c c\u00f3 b\u1ed1n c\u1ea1nh b\u1eb1ng nhau l\u00e0\u00a0h\u00ecnh thoi<\/b>. <\/span><\/div>\n
T\u1ee9 gi\u00e1c c\u00f3 2 \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 \u0111\u01b0\u1eddng trung tr\u1ef1c c\u1ee7a nhau l\u00e0\u00a0h\u00ecnh thoi<\/b>.<\/span><\/div>\n
T\u1ee9 gi\u00e1c c\u00f3 2 \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 \u0111\u01b0\u1eddng ph\u00e2n gi\u00e1c c\u1ee7a c\u1ea3 b\u1ed1n g\u00f3c l\u00e0\u00a0h\u00ecnh thoi<\/b>..<\/span><\/div>\n
H\u00ecnh b\u00ecnh h\u00e0nh c\u00f3 hai c\u1ea1nh k\u00ea b\u1eb1ng nhau<\/div>\n
H\u00ecnh b\u00ecnh h\u00e0nh c\u00f3 hai \u0111\u01b0\u1eddng ch\u00e9o vu\u00f4ng g\u00f3c v\u1edbi nhau<\/div>\n
H\u00ecnh b\u00ecnh h\u00e0nh c\u00f3 \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 \u0111\u01b0\u1eddng ph\u00e2n gi\u00e1c c\u1ee7a m\u1ed9t g\u00f3c<\/div>\n
<\/div>\n
4. C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch h\u00ecnh thoi<\/strong><\/div>\n
Di\u1ec7n t\u00edch h\u00ecnh thoi b\u1eb1ng m\u1ed9t n\u1eeda t\u00edch hai \u0111\u01b0\u1eddng ch\u00e9o.<\/div>\n
G\u1ecdi d1,d2 l\u1ea7n l\u01b0\u1ee3t l\u00e0 hai \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh thoi<\/div>\n
V\u1eady di\u1ec7n t\u00edch h\u00ecnh thoi t\u00ednh theo c\u00f4ng th\u1ee9c l\u00e0:<\/div>\n
S=1\/2.d1.d2<\/div>\n
$\"\"$ <\/div>\n<\/div>\n
<\/div>\n
5.C\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thoi<\/strong><\/div>\n
G\u1ecdi canh c\u1ee7a h\u00ecnh thoi l\u00e0 a, c\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thoi l\u00e0<\/div>\n
P=a.4<\/div>\n
$\"\"$ <\/div>\n
Ngo\u00e0i ra c\u00e1c em c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 di\u1ec7n t\u00edch c\u1ee7a h\u00ecnh b\u00ecnh h\u00e0nh \u0111\u1ec3 t\u00ednh chu vi v\u00e0 di\u1ec7n t\u00edch c\u1ee7a h\u00ecnh thoi vi h\u00ecnh thoi c\u00f3 \u0111\u00e2y \u0111\u1ee7 to\u00e0n b\u1ed9 t\u00ednh ch\u1ea5t c\u1ee7a h\u00ecnh b\u00ecnh h\u00e0nh.<\/div>\n
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<\/p>\n
V\u1edbi c\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thoi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh thoi tr\u00ean, ch\u1eafc ch\u1eafn b\u1ea1n \u0111\u1ecdc \u0111\u00e3 c\u00f3 cho m\u00ecnh nh\u1eefng ki\u1ebfn th\u1ee9c b\u1ed5 \u00edch v\u00e0 quan tr\u1ecdng trong vi\u1ec7c x\u1eed l\u00fd c\u00e1c c\u00e2u h\u1ecfi, b\u00e0i to\u00e1n t\u1eeb \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn h\u00f3c b\u00faa trong b\u00e0i t\u1eadp ho\u1eb7c cu\u1ed9c s\u1ed1ng. Tuy nhi\u00ean c\u0169ng c\u1ea7n ch\u00fa \u00fd t\u1edbi m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n trong c\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh thoi. B\u1edfi s\u1ebd c\u00f3 nh\u1eefng b\u00e0i to\u00e1n cho tr\u01b0\u1edbc \u0111\u00e1p \u00e1n v\u00e0 y\u00eau c\u1ea7u b\u1ea1n \u00e1p d\u1ee5ng c\u00e1ch t\u00ednh chu vi h\u00ecnh thoi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh thoi \u0111\u1ec3 t\u00ecm \u1ea9n s\u1ed1 c\u00f2n thi\u1ebfu.<\/p>\n
Th\u1eadm ch\u00ed c\u0169ng c\u00f3 nh\u1eefng d\u1ea1ng b\u00e0i to\u00e1n li\u00ean k\u1ebft t\u1edbi c\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh ch\u1eef nh\u1eadt, t\u00ednh di\u1ec7n t\u00edch h\u00ecnh tr\u00f2n, \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch h\u00ecnh tam gi\u00e1c,…\u0111\u1ec3 t\u00ecm c\u00e1c \u1ea9n s\u1ed1 kh\u00e1c c\u00f3 m\u1ed1i t\u01b0\u01a1ng quan trong b\u00e0i to\u00e1n ph\u1ee9c h\u1ee3p. Do \u0111\u00f3, b\u1ea1n h\u00e3y c\u1ed1 g\u1eafng l\u00e0m th\u1eadt nhi\u1ec1u d\u1ea1ng to\u00e1n li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh thoi \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng gi\u1ea3i to\u00e1n nh\u00e9.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
C\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh thoi Hai c\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thoi v\u00e0 di\u1ec7n t\u00edch h\u00ecnh thoi \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng cho t\u1ea5t c\u1ea3… <\/p>\n","protected":false},"author":1,"featured_media":4930,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[415,426],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/4929"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=4929"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/4929\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media\/4930"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=4929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=4929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=4929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}