Предмет: Алгебра, автор: Kate8383

Ck бісектриса рівнобедреного трикутника ABC з основою CB . знайдіть градусну міру кута ACK якщо кут A=56 градусов

Ответы

Автор ответа: alyalylol13
1

Ответ:

31°

Объяснение:

∠C=∠B по свойству равнобедренного треугольника

Найдём их углы

56°+х+х=180°

2х=124°

Градусная мера угла B 62°, как и у C

Биссектриса делит угол, из которого выходит, на две равные части

Значит,

∠ACB=62°:2=31°

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