Предмет: Математика, автор: danil492

сторони трикутника дорівнюють 10 12 14 см Знайти периметру трикутника, вершини якого середини сторін даного трикутника

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Автор ответа: Laggfen

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10×14×12=1680кв см периметр треугольника

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