| Edge-contracted icosahedron | |
|---|---|
 | |
| Type | Octadecahedron |
| Faces | 18 triangles |
| Edges | 27 |
| Vertices | 11 |
| Vertex configuration | 2 (34) 8 (35) 1 (36) |
| Symmetry group | C2v, [2], (*22), order 4 |
| Properties | Convex, deltahedron |
| Net | |
 | |
In geometry, an edge-contracted icosahedron is a polyhedron with 18 triangular faces, 27 edges, and 11 vertices.