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Автор - aktobeaa

Помогите с задачей, пожалуйста!
ABCD-параллелограмм
AEC-?
(Рисунок задачи в изображенни)

Ответ

Автор - Bergo
угол CMA=углу DCE(накрест-лежащие)=30
угол MAE=180-60=120
угол MEA=180-(120+30)=30
угол CEA=180-30=150
ответ: а

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