Предмет: Математика, автор: SashaKolesova

Основание равнобедренного треугольника на 1 см меньше боковой стороны. Найдите длины сторон треугольника, если периметр его равен 26.

Ответы

Автор ответа: Vitaliyusman

Х-боковая сторона
Х+Х+(Х-1)=26
3Х=27
Х=9(боковая сторона)
9-1=8(основание)

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