Augmented tridiminished icosahedron
In geometry, the augmented tridiminished icosahedron is one of the Johnson solids (J64). It can be obtained by joining a tetrahedron to another Johnson solid, the tridiminished icosahedron (J63).
| Augmented tridiminished icosahedron | |
|---|---|
 | |
| Type | Johnson J63 – J64 – J65 |
| Faces | 1+2x3 triangles 3 pentagons |
| Edges | 18 |
| Vertices | 10 |
| Vertex configuration | 1(33) 3(3.52) 3(33.5) 3(32.52) |
| Symmetry group | C3v |
| Dual polyhedron | - |
| Properties | convex |
| Net | |
 | |
A Johnson solid is one of 92 strictly convex polyhedra that is composed of regular polygon faces but are not uniform polyhedra (that is, they are not Platonic solids, Archimedean solids, prisms, or antiprisms). They were named by Norman Johnson, who first listed these polyhedra in 1966.[1]
External links
- Johnson, Norman W. (1966), "Convex polyhedra with regular faces", Canadian Journal of Mathematics, 18: 169–200, doi:10.4153/cjm-1966-021-8, MR 0185507, Zbl 0132.14603.
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