Предмет: Геометрия, автор: Vladik3406

В равнобедренном треугольнике abc с основанием ac проведена медиана bd. Найдите градусные меры углов bdc и bca если и угол 1 = 130 градусов

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Ответы

Автор ответа: Пеппер

Ответ:

90°, 50°

Объяснение:

В равнобедренном треугольнике медиана является и высотой, поэтому ∠ВDС=90°.

∠ВСА=∠BAС как углы при основании равнобедренного треугольника

∠ВСА=∠BAС=180-130=50°

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