Предмет: Математика, автор: kobzarenko99

Знайдіть кут між похилою і площиной, якщо довжина похилої 3 см, а відстань від кінця похилої до площини 3 см.


kirichekov: какая-то ошибка. не может наклонная равняться перпендикуляру
kobzarenko99: сори 15 см
kobzarenko99: довжина похолої 15 см

Ответы

Автор ответа: kirichekov
25
прямоугольный треугольник:
гипотенуза - наклонная к плоскости =15 см
катет - перпендикуляр к плоскости =3 см
α - угол между наклонной и плоскостью. найти
sinα=3/15
sinα=1/5
α=arcsin(1/5)
α=11,54°

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