Предмет: Математика, автор: stanboff920

Диаметр круга равен 31,2 см. Значение числа π≈3,14.
Определи площадь этого круга (с точностью до десятых).

Ответы

Автор ответа: sashaantonova2606
0

Ответ:

S=πr²

r=d:2=33.2:2=16.6cm

S=3.14·16.6²≈865.3cm²

Пошаговое объяснение:

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