Предмет: Геометрия, автор: mychkivskam

Знайдіть суміжні кути якщо: 2) їхні градусів міри відносяться як 5:4

Ответы

Автор ответа: irue112

1

Объяснение:

Нехай х-коефіцієнт пропорційності, тоді: 1 кут=5х, 2 кут=4х

5х+4х=180

9х=180/:9

х=20

1 кут- 5×20=100°

2 кут- 4×20=80°

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