Предмет: Геометрия, автор: neo228173

Дано: a ∥b,c-січна ,∠1=3∠2.
Знайти: ∠1,∠2.

Ответы

Автор ответа: ludmilaksenija2005
1

Объяснение:

∠1=3∠2

∠1+∠2=180

3∠2+∠2=180

4∠2=180

∠2=180:4

∠2=45°

∠1=3•45=135°

ответ: ∠1=135° ; ∠2=45°

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