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АВСD - прямоугольник
АD=8 см
АС=20 см
Найдите периметр треугольника АОD
Ответы 1
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АС по условию 20, а диагонали прямоугольника равные и пересекаясь, делятся пополам. ПОэтому периметр АОД
Р=ОА+ОД+АД=20+8=28/см/
т.к.ОА+ОД=10+10=20
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Автор:
callahan - 5 лет назад
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