al-Nasir Muhammed Madrasah

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one regular hexagon.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are five non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 197 polygons.

1. Page 205, Figure 292 (al-Nasir Muhammed Madrasah, Cairo, Egypt. No colour in original) of Dominique Clévenot. Ornament and decoration in Islamic architecture, Thames & Hudson, Pressmark 604.AB.0178, 2000. ISBN 050051032. [clevenot] {Photographs by Gérard Degeorge}(1296-1303AD, 695-702AH)

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