Предмет: Геометрия, автор: Gagjj

За рисунком знайдіть кути трикутника MDC (градусна міра дуги MC становить 120, други DC=40).

Ответы

Автор ответа: Пеппер

0

Объяснение:

Дуга МD=360-120-40=200°

Вписаний кут дорівнює половині дуги, на яку спирається.

∠С=1/2 дуги МD = 200:2 = 100°

∠D=1/2 дуги МС = 120:2=60°

∠М=1/2 дуги СD = 40:2 = 20°

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