1)A cylinder is sliced such that the cross section is perpendicular to his base.
What ist ehe shape of the cross section ?
2)Wich three-dimensional figure is formed by the rotation given?
3)A company is creating a box without a top from a piece of cardboard, but cutting out square corners with side length x.
Wich expression can be used to determin the gratest possible volumen of the cardoard box?