A polyhedron (plural polyhedra or polyhedrons) is often defined as a geometric object with flat faces and straight edges (the word polyhedron comes from the Classical Greek ...

A Windows program in which you can interactively manipulate regular and semiregular polyhedra.

Home Up . Polyhedrons . It seems natural to start a journey with regular polygons, trekking up to regular polyhedrons, and so it shall be. There are five regular ...

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polyhedron (p?l'?h?`dr?n), closed solid bounded by plane faces; each face of a polyhedron is a polygon polygon, closed plane figure bounded by straight line segments as sides.

pol·y·he·dron   (p l-h dr n) n. pl. pol·y·he·drons or pol·y·he·dra (-dr) A solid bounded by polygons. pol y·he dral adj. polyhedron. Noun. pl-drons or-dra a solid figure ...

a solid figure, esp. one with more than six plane surfaces

The plural of polyhedron is "polyhedra" (or sometimes "polyhedrons"). The term "polyhedron" is used somewhat differently in algebraic topology, where it is defined as a space that ...

In geometry, a solid figure with four or more plane faces. The more faces there are on a polyhedron, the more closely it approximates to a sphere.

Polyhedrons. What do you call a twenty sided shape made out of equilateral triangles? You?ll find out in this BrainPOP movie as Tim and Moby introduce you to the wide world of ...