Any.
You can have a triangular pyramid (tetrahedron), a rectangular one, a pentagonal one, and so on.
Similarly, you can have a triangular prism, a rectangular prism, and so on.
They are the faces of the polyhedron.
They are its faces.
No, they are the faces of the polyhedron.
True.
true
They are the faces of the polyhedron.
They are its faces.
Any polygon can be the base of a pyramid and so any polygon can form a polyhedron.
that's a statement, but if you ment to say are the... then yes
No, they are the faces of the polyhedron.
True.
true
False
False
Polyhedra (singular: polyhedron)
False
The polyhedron is composed of several polygons.