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сторона параллелограмма пропорциональны числам 3 и 7. Наидите меньшую сторону,если периметр параллелограмма равен 18
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Предмет:
Математика -
Автор:
margaret - 6 лет назад
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Ответы 1
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к- коэффициент пропорциональностисторона а=3ксторона в=7кР=2(а+в)18=2(3к+7к)18=20 кк=18:20к=0,9а=3*0,9=2,7 в=7*0,9=6,3
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Автор:
mayra - 6 лет назад
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