Предмет: Математика, автор: Sula00

из точки А к данной прямой проведены перпендикуляр AB и две наклонные AC и AD. Сравните AC и AD, если BC=BD.

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Автор ответа: sizyh2005

т.к. угол ВАС= 60 гр,то уголАСВ=90 - 60=30гр.,а по правилу против угла в 30 градусов лежит катет в два раза меньший гипотинузы. то АС=АВ*2=6*2=12

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