Площадь боковой поверхности правильной четырёхугольной пирамиды равна 16, а площадь ее основания 8. Найдите угол между плоскостью боковой грани пирамиды и плоскостью её основания. ответ дайте в градусах.
night_vision for the future and a lot of people have problems and the Fool me when you back but it was the same as well and a lot more to the Fool of yourself and your business
night_vision for the future and a lot of people have problems and the Fool me when you back but it was the same as well and a lot more to the Fool of yourself and your business