| Great complex icosidodecahedron | |
|---|---|
| Type | Uniform star polyhedron |
| Elements | F = 32, E = 60 (30x2) V = 12 (χ = -16) |
| Faces by sides | 20{3}+12{5/2} |
| Wythoff symbol | 5 | 3 5/3 |
| Symmetry group | Ih, [5,3], *532 |
| Index references | U-, C-, W- |
| Bowers acronym | Gacid |
(3.5/3)5 (3.5/2)5/3 (Vertex figure) |
Great complex icosidodecacron (dual polyhedron) |
In geometry, the great complex icosidodecahedron is a degenerate uniform star polyhedron. It has 12 vertices, and 60 (doubled) edges, and 32 faces, 12 pentagrams and 20 pentagons. All edges are doubled (making it degenerate), sharing 4 faces, but are considered as two overlapping edges as topological polyhedron.
It can be constructed from a number of different vertex figures.
The great complex icosidodecahedron can be considered a compound of the small stellated dodecahedron, {5/2,5}, and great icosahedron, {3,5/2}, sharing the same vertices and edges, while the second is hidden, being completely contained inside the first.
Its two-dimensional analogue would be the compound of a regular pentagon, {5}, and regular pentagram, {5/2}.
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