Предмет: Геометрия, автор: miron163

внешний угол равнобедренного треугольника в 3 раза больше угла, смежного с ним. найдите углы треугольника

Ответы

Автор ответа: ChupaChups2013

Пусть внешний угол при вершине х градусов , тогда другой угол равен 3х , тогда
3х+х - сумма углов или 180 градусов
3х+х=180
4х=180
х=45 градусов
3х=135 градусов
Ответ : 45 градусов и 135 градусов

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