Friday mosque, Yazd

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 7.5°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• Contains one regular 12-pointed star polygon with vertex angle of 105°.
• There are 7 non-regular reflective tiles (including one kite).
• 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 355 polygons.

1. Photo by David Wade: IRA 1833 (Friday mosque, Yazd, Iran) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1325AD, 725AH)

• Wade photo IRA 1833

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