Mosque, Rabat

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 15°.
• Contains three regular two-pointed star polygons with vertex angle of 60°.
• Contains three regular two-pointed star polygons with vertex angle of 30°.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• Contains one regular 12-pointed star polygon with vertex angle of 60°.
• There are 18 non-regular reflective tiles (including 3 kites and one dart) and 8 reflective pairs.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 641 polygons.

1. Photo by David Wade: MOR 1118 (Mosque, Rabat, Morocco) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}

• Wade photo MOR 1118

• Tiling with three or more proper stars

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