Предмет: Геометрия, автор: niki1460

Угол между прямой и плоскостью
Дан прямоугольник ABCD, длины сторон которого АВ=6и AD = 8.
Из точки А восстановлен перпендикуляр AEк плоскости АВС, так, что А=10
Найдите угол между прямой ЕС и плоскостью АBC.
Ответ выразите в градусах.

Приложения:

Ответы

Автор ответа: MathGod123

Ответ:

45°

Объяснение:

По теореме Пифагора диагональ прямоугольника равна 10 см и образуется равнобедренный прямоугольный треугольник АЕС и угол ЕСА=СЕА=45°

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