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Question 166700This question is from textbook Heart of Mathmatics
: What makes a solid a regular (Platonic) solid?????
This question is from textbook Heart of Mathmatics
Answer by Earlsdon(6294)   (Show Source):
You can put this solution on YOUR website! A Platonic solid is a solid all of whose face are regular and congruent polygons.
There are five of these:
A Tetrahedron. Four faces, each an equilateral triangle.
A Hexahedron (Cube). Six faces, each a square.
An Octahedron. Eight faces, each an equilateral triangle.
A Dodecahedron. Twelve faces, each a regular pentagon.
An Icosahedron. Twenty faces, each an equilateral triangle.
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