Предмет: Геометрия, автор: matveevasmart

4 знайдіть кут AOC, якщо кут ABC=60
60
120
150

Приложения:

Ответы

Автор ответа: LN330068

1

Ответ:

Если <В=60 градусов,то

<А+<С=180-60=120 градусов

Каждый из этих углов(<А и <С) Биссектриса делит пополам

<ОАС+<ОСА=1/2<А*1/2<С=120:2=60 градусов
Сумма всех углов треугольника равна 180 градусов

<АОС=180-60=120 градусов

Объявснение:

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