Предмет: Геометрия, автор: sabina2781

Решите задачу:
Внутри угла BAC равного 110 градусов, проведен луч AD. Найдите угол BAD если известно,что он в четыре раза меньше угла. CAD

Ответы

Автор ответа: antonmiller11
3
Выразим угол ВAD через х, тогда ВAD=х.
Аналогично, угол САD =4х.
Составим уравнение:
4х+х=110
5х=110
х=22
Ответ: 22 градуса
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