Hanging Church, Cairo

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are four non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 467 polygons.

1. Alamy Photo P9H4K2 (Hanging Church, Cairo, Egypt. Entrance, above arch) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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