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В четырёхугольнике ABCD проведена диагональ AC, AB=CD, BC=AD. Периметр треугольника ABC=23см. CD=5см, BC=8 см. Чему равна диагональ AC. С решением
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Предмет:
Математика -
Автор:
walterrojas - 5 лет назад
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Ответы 1
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CD=AB, то AB=5.AC = 23-5-8 = 10см.Ответ: 10см.
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Автор:
westonwatts - 5 лет назад
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