Date: Mar 1, 2013 8:16 AM
Author: Richard Tobin
Subject: Re: Deformable platonic "solids"

In article <509a9b57-10ef-4c07-93ac-de8b36ed73af@googlegroups.com>,
david petry <david_lawrence_petry@yahoo.com> wrote:

>Dodecahedron: V = 20, E = 30 3V-E = 30 (not rigid)

So you need to add at least 24 edges to a dodecahedron to make it
rigid. That is rather surprising.

-- Richard