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Mathematics, 24.01.2020 21:31 garyyunga2002

Основания равнобедренной трапеции равны 13 см и 28 см. острый угол равен 60 градусов. найдите периметр трапеции

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Основания равнобедренной трапеции равны 13 см и 28 см. острый угол равен 60 градусов. найдите периме...
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