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Mathematics, 18.01.2021 15:00 2337911726

Периметр трикутника дорівнює 78 см, причому друга сторона у 2 рази більша від першої, а третя - на 23 см більшавід другої сторони. Знайдіть кожну сторону трикутника

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Периметр трикутника дорівнює 78 см, причому друга сторона у 2 рази більша від першої, а третя - на...
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