Heptagonal-icosahedral duotegum
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| Heptagonal-icosahedral duotegum | |
|---|---|
| Rank | 5 |
| Type | Uniform dual |
| Notation | |
| Coxeter diagram | m7o2m5o3o |
| Elements | |
| Tera | 140 triangular scalenes |
| Cells | 140 triangular pyramids, 210 digonal disphenoids |
| Faces | 20 triangles, 84+210 isosceles triangles |
| Edges | 7+30+84 |
| Vertices | 7+12 |
| Vertex figure | 7 icosahedral tegums, 12 pentagonal-heptagonal duotegums |
| Measures (edge length 1) | |
| Central density | 1 |
| Related polytopes | |
| Dual | Heptagonal-dodecahedral duoprism |
| Abstract & topological properties | |
| Euler characteristic | 2 |
| Orientable | Yes |
| Properties | |
| Symmetry | H3×I2(7), order 1680 |
| Convex | Yes |
| Nature | Tame |
The heptagonal-icosahedral duotegum is an isoteric duotegum that consists of 140 triangular scalenes and 19 vertices.