An investigation of the formulas of the surface area and volume for the dodecahedron. With icosahedron extensions.

Simple constructions; constructing regular polyhedra; symmetry; and some group theory.

An extensive annotated list of links to material on many-dimensional geometry.

An excerpt of an article published in Mathematica in Education. There are 59 stellations of the icosahedron; these pages contain various images of them, ordered by increasing circumradius, and some background...

The Geometry Junkyard website provides a broad introduction to the specifics of geometry. The site, designed by David Eppstein of UC-Irvine, provides all the basics of geometry for students and teachers alike. Topics...