Предмет: Геометрия, автор: Milk0pink

Паралельні прямі а і в перетинає січна с. Знайдіть кут 2, якщо 22: 21= 3:2.

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Ответы

Автор ответа: Пеппер

0

Ответ:

72° 108°

Объяснение:

∠2+∠1=180° оскільки а║b

∠2=3х° ∠1=2х°; 3х+2х=180; 5х=180; х=36

∠2=36*3=108°, ∠2=36*2=72°

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