Предмет: Математика, автор: FlareTV

Вычислите длину окружности и площадь круга, если r=7 см

Ответы

Автор ответа: ZzCaty

Ответ:

↓

Пошаговое объяснение:

l = 2пр = 2×п×7 = 14π

S = пр² = п7² = 49π

Автор ответа: horkovva

Ответ:

Пошаговое объяснение:

L=2πr-длина окружности

2*3.14*7=43.96 см

S=πr²-площадь окружности

3,14*7*7=153,86 см²

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