No.
No.
cuboid
eight * * * * * No! A cuboid, placed on a face has only 4 vertical edges.
if you have a 3d cuboid it is the smooth serface
No.
Yes.
Rectangle.
No.
cuboid
Each face of a cuboid is just as special as any of the other faces.
eight * * * * * No! A cuboid, placed on a face has only 4 vertical edges.
4 on each face.
if you have a 3d cuboid it is the smooth serface
Yes but its length is rectangular
A cuboid has rotational symmetries of order 2 around each of the three axes going through a pair of opposite faces.
A cuboid prism has no triangular faces