Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**wintersolstice****Real Member**- Registered: 2009-06-06
- Posts: 123

In the "Mathsisfun" page, it says there are only 5 regular polyhedra ("the Platonic solids (or regular polyhedra)")

There are actually nine regular polyhedra, the 5 Platonic solids and the 4 Kepler-Poinsot solids. A Platonic solid is a regular "convex" polyhedron. The other 4 are star polyhedra.

Why did the chicken cross the Mobius Band?

To get to the other ...um...!!!

Offline

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,608

You have a point. I will remove the reference to "regular" until I can incorporate the star polyhedra.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

Offline