Предмет: Геометрия, автор: Anna456anna

Помогите в кубе найти расстояние от точки В до плоскости

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Автор ответа: САндрейФ

0

плоскость АDD1 -это грань АDD1A , AB перпендикулярен АDD1A, значит это и есть искомое расстояние, и равно оно 2.

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