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Периметр параллелограмм равен 54 см ,а одна из сторон меньше другой на 3 см .Найдите стороны прямоугольника.
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пусть меньшая сторона х см ,тогда большая сторона (х+3) см54=2*(х+х+3)54=4х+64х=54-64х=48х=48/4х=12 см это меньшая сторона 12+3=15 см это большая сторона
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Автор:
morganbprl - 5 лет назад
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