Because it is a polyhedron meaning many faces whereas a polygon means many sides.
A square does not have rectangular faces.
A square prism has six faces.
A cube has 6 square faces.
5 faces do a square pyramid
It has 3 more triangular faces than square faces
There are two faces on a square (front and back.) There are six faces on a cube.
It has 4 rectangular faces and 2 square faces (:
A flat square has 4 faces.
A cube has 6 faces. A square has 2 faces if it is only a flat object.
5 faces
Six faces