Triangular-enneagonal duotegum
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| Triangular-enneagonal duotegum | |
|---|---|
| Rank | 4 |
| Type | Uniform dual |
| Notation | |
| Coxeter diagram | m3o2m9o |
| Elements | |
| Cells | 27 digonal disphenoids |
| Faces | 27+27 isosceles triangles |
| Edges | 3+9+27 |
| Vertices | 3+9 |
| Vertex figure | 9 triangular tegums, 3 enneagonal tegums |
| Measures (edge length 1) | |
| Central density | 1 |
| Related polytopes | |
| Dual | Triangular-enneagonal duoprism |
| Conjugates | Triangular-eneagrammic duotegum, triangular-great enneagrammic duotegum |
| Abstract & topological properties | |
| Euler characteristic | 0 |
| Orientable | Yes |
| Properties | |
| Symmetry | A2×I2(9), order 108 |
| Convex | Yes |
| Nature | Tame |
The triangular-enneagonal duotegum, also known as the 3-9 duotegum, is a duotegum that consists of 27 digonal disphenoids and 12 vertices.
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