Предмет: Геометрия, автор: Вселенная14

помогите пожалуйста решить по геометрии

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Автор ответа: Banabanana

1

∠1 = ∠2 (соответственные углы равны)
∠1 = 100/2 = 50°
∠3 = 180 - ∠1 = 180 - 50 = 130° (сумма смежных углов = 180°)

Ответ: ∠3 = 130°

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