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Боковая сторона равнобедренного треугольника в 1,2 раза больше основания.Найти стороны этого треугольника если его периметр равен 20,4 см.
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Предмет:
Геометрия -
Автор:
nieves8ep8 - 5 лет назад
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Ответы 1
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Пусть х см – основание равнобедренного треугольника, тогда боковая его сторона=1,2х. Зная, что Р=20,4 см, составим и решим уравнение:х+1,2х+1,2х=20,4;3,4х=20,4;х=20,4:3,4;х=6 – основание треугольника.1,2*6=7,2 – боковая сторона.Ответ: 6 см, 7,2 см, 7,2 см.
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Автор:
ivanalvarez - 5 лет назад
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