Предмет: Геометрия, автор: mahabbat

дано: треугольник ABC-равнобедренный периметр треугольника ABC=35 см сторона AB=стороне BC как боковые стороны боковая сторона AB на 5 см меньше основания. найт:все стороны

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Автор ответа: Левушка
0

Пусть АВ=Х,тогда ВС=Х,АС=Х+5.Сост.ур-ние:Х+Х+Х+5=35,откуда Х=10=АВ=ВС,а АС=10+5=15

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