
I was delighted to see that cans of Coca-Cola® now on sale feature a picture of a truncated icosahedron. This is real progress!

I was delighted to see that cans of Coca-Cola® now on sale feature a picture of a truncated icosahedron. This is real progress!

In this polyhedron, there are twelve pentagons and sixty kites. It can be made by augmenting twenty of the triangles in a snub dodecahedron with short pyramids, but the pyramid-height has to be just right, in order to make those pyramids’ lateral faces coplanar with the non-augmented triangles, which produces the kites.
Since this polyhedron is chiral, a compound can be made by adding it to its own mirror image:
Both images were created using Stella 4d, software available at www.software3d.com/Stella.php.

I made this using Stella 4d, software you can try and/or buy at http://www.software3d.com/Stella.php.
The “holes” are actually hexagonal and decagonal faces which have been made invisible. Here’s what the polyhedron looked like before I hid them:
If you’d like to see this second image enlarged, simply click on it.