document.write( "Question 166700This question is from textbook Heart of Mathmatics
\n" ); document.write( ": What makes a solid a regular (Platonic) solid????? \n" ); document.write( "

Algebra.Com's Answer #122858 by Earlsdon(6294) $\"\"$ $\"About$

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A Platonic solid is a solid all of whose face are regular and congruent polygons.
\n" ); document.write( "There are five of these:
\n" ); document.write( "A Tetrahedron. Four faces, each an equilateral triangle.
\n" ); document.write( "A Hexahedron (Cube). Six faces, each a square.
\n" ); document.write( "An Octahedron. Eight faces, each an equilateral triangle.
\n" ); document.write( "A Dodecahedron. Twelve faces, each a regular pentagon.
\n" ); document.write( "An Icosahedron. Twenty faces, each an equilateral triangle.
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