Предмет: Математика, автор: Аноним

ОЧЕНЬ СРОЧНО ПОЖАЛУЙСТА!!!!!!
1.
Диаметр окружности равен 8,34 см. Значение числа π≈3,14.
Определи длину этой окружности (с точностью до сотых).

= .... см.
2.
Длина окружности равна 10,174 см. Значение числа π≈3,14.
Определи диаметр данной окружности (с точностью до сотых).

= ..... см.

3.
Радиус окружности равен 9,68 см. Значение числа π≈3,14.
Определи длину этой окружности (с точностью до сотых).

= .... см.
4.
Радиус круга равен 13,9 см. Значение числа π≈3,14.
Определи площадь этого круга (с точностью до десятых).

= .... см².

Ответы

Автор ответа: Аноним

Ответ:

1) С=2πR=πD=8.34*3.14=26.19

2) С=2πR=πD

D=C/π=10.174/3.14=3.24

Пошаговое объяснение:

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