Figure 2.5.7 (d) on page 88
T00821, data146/F257D
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Geometry
- The symmetry group of the tiling is 3*3 (p31m).
- Contains two equilateral triangles.
- Contains one regular three-pointed star polygon with vertex angle of 102.8 (4π/7)°.
- The tiling satisfies the two-colour condition.
- The tiling is edge-to-edge.
- As drawn, contains about 84 polygons.
References
Publications referenced:
- Page 88 of B Grünbaum and G C Shephard. Tilings and Patterns, W H Freeman, 1987. ISBN 071671193. [gands] {Most important work in this area.}
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