Main Page | See live article | Alphabetical index The truncated dodecahedron is an Archimedean solid. Canonical coordinates for the vertices of a truncated dodecahedron centered at the origin are (0, ±1/τ, ±(2+τ)), (±(2+τ), 0, ±1/τ), (±1/τ, ±(2+τ), 0), and (±1/τ, ±τ, ±2τ), (±2τ, ±1/τ, ±τ), (±τ, ±2τ, ±1/τ), and (±τ, ±2, ±τ2), (±τ2, ±τ, ±2), (±2, ±τ2, ±τ), where τ = (1+√5)/2 is the golden mean. It has 12 regular decagonal faces, 20 regular triangular faces, 60 vertices and 90 edges. See dodecahedron. External Links The Uniform Polyhedra Virtual Reality Polyhedra The Encyclopedia of Polyhedra This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.