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Урок 5(2). Взаимное расположение прямых в пространстве
Author:
sofja.krizanovskaja
GeoGebra
Точки Е, F, P и M - середины A1D1, D1C, CD и A1D соответственно. Докажите, что ЕР и МF пересекаются и точкой пересечения делятся пополам.
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