Предмет: Математика, автор: БотХарви

Помогите пожалуйста. (всё 3 задания)

Приложения:

Ответы

Автор ответа: gontsov61

1.
Х + 2Х + 2Х = 360
5Х = 360
Х = 180 : 5
Х = 36 2Х = 72
ответ: углы при основании по 72 град., третий угол - 36 град.
2.
180 : 4 = 45 3 х 45 = 135
ответ: угол при основании 45 град.
3.
180 : 3 = 60
ответ: все углы 60 град.

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