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{"id":60397,"date":"2020-09-22T18:19:42","date_gmt":"2020-09-22T18:19:42","guid":{"rendered":"https:\/\/student-madi.ru\/prochee\/formuly-ploshhadi-vseh-geometricheskih-figur"},"modified":"2024-07-04T19:52:35","modified_gmt":"2024-07-04T16:52:35","slug":"formuly-ploshhadi-vseh-geometricheskih-figur","status":"publish","type":"post","link":"https:\/\/student-madi.ru\/prochee\/formuly-ploshhadi-vseh-geometricheskih-figur.html","title":{"rendered":"\u0424\u043e\u0440\u043c\u0443\u043b\u044b \u043f\u043b\u043e\u0449\u0430\u0434\u0438 \u0432\u0441\u0435\u0445 \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0444\u0438\u0433\u0443\u0440"},"content":{"rendered":"\n

\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0435 \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u043b\u043e\u0449\u0430\u0434\u0438<\/b> — S <\/p>\n

\u041f\u043b\u043e\u0449\u0430\u0434\u044c<\/h2>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

\u041f\u0443\u0441\u0442\u044c \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 a, \u0442\u043e\u0433\u0434\u0430 \u0444\u043e\u0440\u043c\u0443\u043b \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0430<\/b>: <\/p>\n

S = a \u22c5 a = a2 <\/p>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

\u041f\u0443\u0441\u0442\u044c \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 \u0440\u0430\u0432\u043d\u044b a \u0438 b <\/p>\n

S = a \u22c5 b <\/p>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

\u041f\u0443\u0441\u0442\u044c \u0434\u043b\u0438\u043d\u044b \u0441\u0442\u043e\u0440\u043e\u043d \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u043e\u0433\u0440\u0430\u043c\u043c\u0430 \u0440\u0430\u0432\u043d\u044b a \u0438 b \u0438
ha \u044d\u0442\u043e \u0432\u044b\u0441\u043e\u0442\u0430 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0443 a,
\u0438 hb \u044d\u0442\u043e \u0432\u044b\u0441\u043e\u0442\u0430 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0443 b
\u0424\u043e\u0440\u043c\u0443\u043b\u0430 \u043f\u043b\u043e\u0449\u0430\u0434\u0438 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u043e\u0433\u0440\u0430\u043c\u043c\u0430:<\/p>\n

S = a \u22c5 ha = b \u22c5 hb <\/p>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

\u0414\u043e\u043f\u0443\u0441\u0442\u0438\u043c, \u0447\u0442\u043e \u0434\u043b\u0438\u043d\u044b \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u0442\u043e\u0440\u043e\u043d \u0442\u0440\u0430\u043f\u0435\u0446\u0438\u0438 \u0438\u043c\u0435\u044e\u0442 \u0434\u043b\u0438\u043d\u0443 a \u0438 b \u0438 \u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u043c\u0435\u0436\u0434\u0443 \u0434\u0432\u0443\u043c\u044f \u043e\u0441\u043d\u043e\u0432\u0430\u043c\u0438 s h(the trapezoid altitude).
\u0422\u043e\u0433\u0434\u0430 \u0444\u043e\u0440\u043c\u0443\u043b\u0430 \u043f\u043b\u043e\u0449\u0430\u0434\u0438: <\/p>\n

$S = frac{(a + b)cdot h}{2}$ <\/p>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

$P = picdot r^2$ <\/p>\n

$pi=3,14$ <\/p>\n

\u041f\u043b\u043e\u0449\u0430\u0434\u044c \u043f\u0440\u044f\u043c\u043e\u0443\u0433\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430<\/h3>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

$S=frac{a cdot b}{2}$ <\/p>\n

$S=frac{c cdot h_c}{2}$ <\/p>\n

\u041f\u043b\u043e\u0449\u0430\u0434\u044c \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430 — \u043a\u0430\u043b\u044c\u043a\u0443\u043b\u044f\u0442\u043e\u0440<\/h3>\n

\u0421\u0442\u043e\u0440\u043e\u043d\u044b \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a\u0430: <\/strong> <\/p>\n

ABC — \u0442\u0440\u0435\u0443\u0433\u043e\u043b\u044c\u043d\u0438\u043a <\/p>\n

\"\u0424\u043e\u0440\u043c\u0443\u043b\u044b<\/span><\/p>\n

\u0434\u043b\u0438\u043d\u0430 \u0435\u0433\u043e \u0441\u0442\u043e\u0440\u043e\u043d: a, b, c \u0438 \u0434\u043b\u0438\u043d\u0430 \u0435\u0433\u043e \u0432\u044b\u0441\u043e\u0442: ha, hb \u0438 hc. <\/p>\n

S = \u00bd(a \u22c5 ha) = \u00bd(b \u22c5 hb) = \u00bd(c \u22c5 hc)<\/p>\n

S = \u00bd(ab \u22c5 sinC) = \u00bd(ac \u22c5 sinB) = \u00bd(bc \u22c5 sinA) <\/p>\n