Предмет: Математика, автор: rodrigis2008

1.Найдите длину окружности,если её диаметр равен 25 см.Число пи =3.14

2.Найдите площадь круга,радиус которого равен 6 м.Число пи=3.14

Заранее спасибо
6 класс

35 балов

Ответы

Автор ответа: vadimkanechaev
1

Ответ:

Пошаговое объяснение:

1)С=2piR

C=2*3.14*(d/2)

C=31.4

2)S=pi*R^2

S=3.14*36=113.04

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