Предмет: Алгебра, автор: vikatsapana

Надо как можно быстрее, пожалуйста!!

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Автор ответа: ZlataSergeeva2000

1

Доказательство:

Если гипотенуза и острый угол одного прямоугольного треугольника соответственно равны гипотенузе и острому углу другого прямоугольного треугольника, то такие треугольники равны.

ΔABD = ΔACD так как это прямоугольные треугольники, у которых гипотенуза AD является общей стороной и острые углы равны по условию: ∠BAD = ∠CAD.

vikatsapana: огромное спасибо

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