Предмет: Геометрия, автор: valentina137

Центральный угол AOB равняется 50 градусов. Найти угол АCB.

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Автор ответа: товик

∠АОВ=50° по условию, значит ∪АСВ=50°, тогда ∪АDВ=360-50=310°.
Вписанный ∠АСВ опирается на дугу АDВ, ∠АСВ =1/2∪АDВ=1/2*310=155°

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