| Great retrosnub icosidodecahedron | |
|---|---|
| |
| Type | Uniform star polyhedron |
| Elements | F = 92, E = 150 V = 60 (χ = 2) |
| Faces by sides | (20+60){3}+12{5/2} |
| Coxeter diagram |     
|
| Wythoff symbol | | 2 3/2 5/3 |
| Symmetry group | I, [5,3]+, 532 |
| Index references | U74, C90, W117 |
| Dual polyhedron | Great pentagrammic hexecontahedron |
| Vertex figure |  (34.5/2)/2 |
| Bowers acronym | Girsid |
In geometry, the great retrosnub icosidodecahedron or great inverted retrosnub icosidodecahedron is a nonconvex uniform polyhedron, indexed as U74. It has 92 faces (80 triangles and 12 pentagrams), 150 edges, and 60 vertices.[1] It is given a Schläfli symbol sr{3⁄2,5⁄3}.
- ^ Maeder, Roman. "74: great retrosnub icosidodecahedron". MathConsult.