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В равнобедренном треугольнике с периметром 80 см одна из сторон равна 20 см. найдите длину основания треугольника
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Предмет:
Математика -
Автор:
brady29 - 5 лет назад
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Ответы 1
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х+х+20=802х=80-202х=60х=60:2х=30см основание треугольника80-20-30=30см другая сторонаответ 30см его основание30+30+20=80см периметр
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Автор:
janae - 5 лет назад
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0
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