Предмет: Математика, автор: daragapcenko

ДАЮ 30 БАЛЛОВ ПОМОГИТЕ ПЖЛСТ
Прямая СD проходит через вершину треугольника АВС и не лежит в плоскости АВС. Докажите, что прямые СD и AB– скрещивающиеся.​

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Автор ответа: margarita7xx
0
что за номер?и какой учебник
daragapcenko: это самостоялка
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