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Regular Polyhedron

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regular polyhedron

[′reg·yə·lər ‚päl·i′hē·drən]
(mathematics)
A polyhedron all of whose faces are regular polygons, and whose polyhedral angles are congruent. Also known as platonic solid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Polyhedron, Regular

 

a polyhedron whose faces are identical regular polygons and whose polyhedral angles at the vertices are identical. There are five convex regular polyhedrons: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
In addition to well-executed and neat models, the most important contribution of dynamic geometry to the given issue is the need to deal with non-standard geometrical relations between the given regular polyhedrons.
Within the frame of traditional education in the characteristics of regular polyhedrons at basic and secondary schools, or in the education of future teachers of mathematics, one of the highest educational goals is perhaps the ability to show the mutual duality of two regular solids.
Kepler knew that there were only five regular polyhedrons (solid figures whose faces are composed of identical polygons): tetrahedrons, cubes, octahedrons, dodecahedrons, and icosahedrons.
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