A polyhedron is a three-dimensional solid object that is made of several flat surfaces (faces). Each face is a polygon, that is, a flat surface consisting of a series of straight edges. Example: a cube is a six-sided polyhedron:

A cube showing the edges, vertices and faces

The plural of polyhedron is 'polyhedra'. It derives from the Greek "poly - many" and "hedron - face"

Other polygon topics


Types of polygon

Area of various polygon types

Perimeter of various polygon types

Angles associated with polygons

Named polygons