Предмет: Геометрия, автор: vashka342

Найдите углы параллелограмма, если два его угла относятся как 3:7.

Ответы

Автор ответа: Lera73

1 угол = 3 угол = 360/20*3 = 54

2 угол = 4 угол = 360/20*7 = 126

Автор ответа: Викушка95

Сумма двух соседних углов равна 180°

α = 3х

β = 7х

α+β=3х+7х=10х

10х = 180°

х = 18°

α = 54°

β = 126°

Углы параллелограмма 54°, 126°, 54° и 126°

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