Предмет: Математика, автор: byblik420

Помогите пожалуйста геометрия 10 класс

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Автор ответа: cutefoxkelvin

Ответ:

90°

Пошаговое объяснение:

Так как мы имеем дело с правильной призмой, то она является прямой. Следовательно, угол между её гранями и плоскостью основы прямой. CC1 принадлежит плоскости DC1C, которая перпендикулярна АВС. Следовательно угол между СС1 и АВС = 90°

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