Предмет: Геометрия, автор: lenochka770700

смежные стороны параллелограма равны 52см и 30см а острый угол равен 30градусов. найти площадь

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Автор ответа: biteplo

0

высота = sin 30 * 30 = 30/2=15
S = основание * высота (проведенная к этому основанию) = 15*52=780

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