Dear Geometers,

Geometric solids are one of my favorite things. I especially like the five regular polyhedrons–tertrahedron, cube, octahedron, dodecahedron, and icosahedron. They are regular polyhedrons because each of their faces is a regular polygon.

Thousands of years ago, Plato and other ancient Greeks proved that these are the only possible regular polyhedrons, so now we call them Platonic solids. Plato was interested in timeless truths about the world and in math and geometry he found many of them.

That’s what’s so great about math–it gives us truths about the world that last forever.

Sincerely,

Mr. Heimbuck