Figure 2.6.2 (b), Tiling from dissection of |5/2|

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains one regular two-pointed star polygon with vertex angle of 36°.
• There are two non-regular reflective tiles.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 79 polygons.

1. Figure 2.6.2 (b), page 93 (Tiling from dissection of |5/2|) of B Grünbaum and G C Shephard. Tilings and Patterns, W H Freeman, 1987. ISBN 071671193. [gands] {Most important work in this area.}
2. PP Class 10, [cmm,d2,d1], IH Class 26 of S J Dawes and B A Wichmann. A New Class of Tilings with Two Prototiles, Visual Mathematics, Vol 3, No 4., 2001. [dawes] {Revises CD/booklet.} Available on Internet.

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