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Отрезок, равный 13.8 см, разделен на 3 неравных отрезка.
Расстояние между серединами крайних отрезков равно 7.4 см.
Найдите длину среднего отрезка-
Предмет:
Геометрия -
Автор:
aresiokxbh - 5 лет назад
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Ответы 1
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x+y+z=13.8x/2+y+z/2=7.4 x+2y+z=14.82е минус первоеx-x+2y-y+z-z=14.8-13.8y=1
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Автор:
harleyszr6 - 5 лет назад
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