Mathematics, 18.02.2021 15:10 LikeIke9418

Периметр треугольника равен 20см, причем одна сторона составляет 30% периметра, а две другие равны между собой. Найти длины всех сторон треугольника, какой это треугольник по сторонам.

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Периметр треугольника равен 20см, причем одна сторона составляет 30% периметра, а две другие равны м...