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Dye, Figure K 9a

Opposed windwheels, Rice shop, Chengtu, Szechwan, 1850 AD.

This pattern is a member of an interesting class of mathematical patterns. PP Class 69, [p4g,c4,d1], IH Class 29.

Statistics on this tiling:

• Tiling has symmetry p4g.
• Tiling has 3 polygons and 15 edges.
• Edges are completely connected.
• Tiling is not edge-to-edge.
• Tiling satisfies the two-polygon condition.
• Internal angles a multiple of 90°.
• Contains one non-regular polygon which has reflective symmetry.
• Contains: 2 squares.
• Tiling contains 131 polygons.

Summary of images