Wikala of al-Ghuri, Cairo

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 6°.
• Contains one regular pentagon.
• Contains one regular 6-pointed star polygon with vertex angle of 72°.
• There are 6 non-regular reflective tiles (including 2 kites).
• The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 321 polygons.

1. Photo by David Wade: EGY 0930 (Wikala al-Ghuri, Cairo, Egypt) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}

• Wade photo EGY 0930

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