Предмет: Математика, автор: nbvxzh

знайти кути рівнобічноі трапеціі якщо один з кутів 147 градусів
Ср помогите пжжж

Ответы

Автор ответа: KatyaTyu123
0

Дано;

Трапеція АВСД,

АВ=СД, <А=<Д, <В=<С.

Знайти: всі кути

Розв'язання

Нехай

<А=х, <В=х+147 тоді :

Складемо рівняння

<А+<В=180

+х+147=180

2х=33,

х=16, (<А=<В)

16,5+50= 66,5 <В=<С)

Відповідь: <В=<С=66,5

<А=<В= 16,

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