Platonic Solids dice numbers
Platonic Solids dice dots
|Platonic Solids (.PDF)||
Platonic Solids numbers (.PDF)
||Platonic Solids dots (.PDF)|
There are five so named because they were known at the time of Plato circa (427-347 BC). These polyhedra are also called regular polyhedra because they are made up of faces that are all the same regular polygon.
|A Platonic solid is a polyhedron all of whose faces
are congruent regular convex polygons*, and where the same number of faces
meet at every vertex.
The Greeks recognized that there are only five platonic solids.
But why is this so?
*) Regular means that the sides of the polygon are all the
Mathforum dr.math faq Regular Polyhedra
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Wikipedia: Platonic Solids