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Радиус окружности равен 5 см .
На сколько процентов уменьшится площадь круга ограниченного этой
Окружностью если её радиус уменьшить на 1 см-
Предмет:
Математика -
Автор:
jackrabbitqbnl - 5 лет назад
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Ответы 1
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площадь круга S=πR²=25π.S₁=π(5-2)²=16πt=S-S₁=25π-16π=9π
%Ответ: уменьшится на 36%.
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Автор:
otilia - 5 лет назад
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0
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