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Объём конуса
Конус можно рассматривать как правильную пирамиду с бесконечно большим числом сторон в основании.
Демонстрацию подготовили Сергей Малафеев и Виктория Романова,
11 класс, ГБОУ ЦО "Технологии обучения",
апрель 2015 г.