Two.
A cylinder techincally has 3 sides 2 flat side and the curved circle. As for "faces", I would assume they are refering to the 2 flat sides.
a cylider deffinatly
None
A rectangle has 4 faces: 2 long faces and 2 short faces.
10 faces 10 faces
no faces
A trapezoid is a quadrilateral and has four faces.
A hexahedron has 6 faces.
Twelve faces.
it has six faces
6 faces