Triheptagonal tiling

From HandWiki
Short description: Semiregular tiling of the hyperbolic plane


Triheptagonal tiling
Triheptagonal tiling
Poincaré disk model of the hyperbolic plane
Type Hyperbolic uniform tiling
Vertex configuration (3.7)2
Schläfli symbol r{7,3} or {73}
Wythoff symbol 2 | 7 3
Coxeter diagram or
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
FacesRhombi
Coxeter diagram
Symmetry group[7,3], *732
Rotation group[7,3]+, (732)
Dual polyhedronTriheptagonal tiling
Face configurationV3.7.3.7
Propertiesedge-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

The triheptagonal tiling can be seen in a sequence of quasiregular polyhedrons and tilings: