Mathematics, 18.02.2021 15:10, miannasanderso8146

.Одна сторона треугольника - 7,5дм, вторая сторона в 4/3 раза длиннее. Найти третью сторону треугольника, если его периметр равен 28дм.

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.Одна сторона треугольника - 7,5дм, вторая сторона в 4/3 раза длиннее. Найти третью сторону треуголь...