Предмет: Геометрия, автор: Oldexon

Помогите срочно геометрия номер 3.11 и 3.15

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Автор ответа: lizamarkiza11

0

3,15
Сумма всех углов треугольника - 180
1) 180 - 80 = 100 градусов
2) 180 - 115 = 65 градусов
3) 180 - 140 = 40 градусов
4) 180 - 145 = 35 градусов

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