Вопрос школьника по предмету Математика
Диамтр окружности равен 6 см. Найдите: a)длину окружности б) площядь окружности
Ответ учителя по предмету Математика
Длина: C=π D
C=3,14*6=18,84 см.
Площадь: S= πr2
S=3,14*(6:2)= 9,42 см2
Ответ: С=18,84 см
S=9,42 см2
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