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platonic solid |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.01 sec. |
Platonic solidalso known as regular polyhedronGeometric solid all of whose faces are identical regular polygons and all of whose angles are equal. There are only five such polyhedrons. The cube is constructed from the square, the dodecahedron from the regular pentagon, and the tetrahedron, octahedron, and icosahedron (with 20 faces) from the equilateral triangle. They are known as the Platonic solids because of Plato's attempt to relate each to one of the five elements that he believed formed the world. platonic solid [plə‚tȧn·ik ′säl·əd] (mathematics) How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Just why dimension four has an extra platonic solid is a puzzle to mathematicians. Die cuts are quick and inexpensive learning tools that allow each student to work with manipulatives, whether they are pattern blocks or platonic solids. The primary thesis in the Mysterium cosmographicum is that God created the (Copernican) universe to express the five platonic solids (the cube, tetrahedron, octahedron, icosahedron, and dodecahedron). |
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