Предмет: Математика, автор: Karina4244454

Реши задачи.
1. Вычисли диаметр окружности, если радиус равен 2,8 см.
Ответ: d=
см.

2. Вычисли площадь квадрата, если длина стороны квадрата равна 8 см.
Ответ: S=
см2.

3. Вычисли объём куба, если длина ребра равна 3 см.
Ответ: V=
см3.

Ответы

Автор ответа: kordashevlenya

Ответ:

1) 5,6см; 2) 64 см2; 3) 27 см3

Пошаговое объяснение:

1) R-радиус

d= 2R

d= 5,6 см

2) a- сторона квадрата

S= a*a

S= 64 см2

3)a- длина ребра

V= a*a*a

V=3*3*3= 27 см3

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