Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
You are not logged in.
- Topics: Active | Unanswered
#1 2009-06-20 01:14:22
- wintersolstice
- Real Member
- Registered: 2009-06-06
- Posts: 128
"regular polyhedra"
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
#2 2009-06-20 12:13:04
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,713
Re: "regular polyhedra"
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