Yes.
2 plane faces, 1 curved face
A cylinder has two faces that are both curved.
Cylinder
Yes.
one.
There cannot be such a shape. It is not a cylinder because a cylinder sdoes not have a rectangular face. A rectangle must be a flat face and the only flat faces in a cylinder are the circle faces. The curved face can be "opened out" into a rectangular shape but because the face is curved it cannot be rectangular.
Its an Cylinder
A cylinder !
A cylinder?
cylinder
A cylinder !
2 plane faces i curved face