Two Polygons, PP Class 41, [p31m,c3,c1], IH Class 38.

• The symmetry group of the tiling is 3*3 (p31m).
• Contains two equilateral triangles.
• There are one non-regular reflective pairs and no tiles with no mirror image.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• The tiling satisfies the two-polygon condition.
• As drawn, contains about 92 polygons.

1. PP Class 41, [p31m,c3,c1], IH Class 38 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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