Answer
True.
Work Step by Step
In geometry, a polyhedron may be defined as a figure solid in nature and surrounded by polygons. It consists of dimensions with flat polygonal faces, edges,and vertices. A cube, Pyramid and a rectangular solid may be considered as the examples of the polyhedron. The volume of a polyhedron is expressed in cubic units.
A solid figure bounded by six square also called faces will be termed as cube. Cube is a polyhedron.
Hence, the given statement is true.