Triheptagonal tiling
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Short description: Semiregular tiling of the hyperbolic plane
| Triheptagonal tiling | |
|---|---|
Poincaré disk model of the hyperbolic plane | |
| Type | Hyperbolic uniform tiling |
| Vertex configuration | (3.7)2 |
| Schläfli symbol | r{7,3} or |
| Wythoff symbol | 2 | 7 3 |
| Coxeter diagram | |
| Symmetry group | [7,3], (*732) |
| Dual | Order-7-3 rhombille tiling |
| Properties | Vertex-transitive edge-transitive |
In geometry, the triheptagonal tiling is a semiregular tiling of the hyperbolic plane, representing a rectified Order-3 heptagonal tiling. There are two triangles and two heptagons alternating on each vertex. It has Schläfli symbol of r{7,3}.
Compare to trihexagonal tiling with vertex configuration 3.6.3.6.
Images
| 240px Klein disk model of this tiling preserves straight lines, but distorts angles |
240px The dual tiling is called an Order-7-3 rhombille tiling, made from rhombic faces, alternating 3 and 7 per vertex. |
7-3 Rhombille
| 7-3 rhombille tiling | |
|---|---|
| Faces | Rhombi |
| Coxeter diagram | |
| Symmetry group | [7,3], *732 |
| Rotation group | [7,3]+, (732) |
| Dual polyhedron | Triheptagonal tiling |
| Face configuration | V3.7.3.7 |
| Properties | edge-transitive face-transitive |
In geometry, the 7-3 rhombille tiling is a tessellation of identical rhombi on the hyperbolic plane. Sets of three and seven rhombi meet two classes of vertices.
640px
7-3 rhombile tiling in band model
Related polyhedra and tilings
The triheptagonal tiling can be seen in a sequence of quasiregular polyhedrons and tilings:
| Quasiregular tilings: (3.n)2 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sym. *n32 [n,3] |
Spherical | Euclid. | Compact hyperb. | Paraco. | Noncompact hyperbolic | ||||||
| *332 [3,3] Td |
*432 [4,3] Oh |
*532 [5,3] Ih |
*632 [6,3] p6m |
*732 [7,3] |
*832 [8,3]... |
*∞32 [∞,3] |
[12i,3] | [9i,3] | [6i,3] | ||
| Figure |
|||||||||||
| Figure |
|||||||||||
| Vertex | (3.3)2 | (3.4)2 | (3.5)2 | (3.6)2 | (3.7)2 | (3.8)2 | (3.∞)2 | (3.12i)2 | (3.9i)2 | (3.6i)2 | |
| Schläfli | r{3,3} | r{3,4} | r{3,5} | r{3,6} | r{3,7} | r{3,8} | r{3,∞} | r{3,12i} | r{3,9i} | r{3,6i} | |
| Coxeter |
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