yes
Yes, a trapezoidal prism is a polyhedron. A polyhedron is a solid three dimensional object with flat face, straight edges and sharp corners.
Yes, it is.
It is a polyhedron.
rectangular prism
a triangular prism
It is still a polyhedron. It may or may not still be a prism.
Yes, a trapezoidal prism is a polyhedron. A polyhedron is a solid three dimensional object with flat face, straight edges and sharp corners.
Yes, it is.
yes it is
no
Yes.
Yes.
Yes.
yes
NO spelling
Yes
the names of them are semiregular polyhedron