Предмет: Математика, автор: Evasr1

Длина первой стороны треугольника 18 см. Второй в 2 раза меньше, и длина третьей стороны 15 см. Найди периметр этого треугольника.

Ответы

Автор ответа: Беня2018

11

1) 18/2=9 см вторая сторона
2) Р=18+9+15=42 см

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?

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does she make you?
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