Three uses in Cairo

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 14 regular two-pointed star polygons with vertex angle of 72°.
• Contains 7 regular pentagons.
• Contains two regular 10-pointed star polygons with vertex angle of 72°.
• There are 8 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has 7 finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 1159 polygons.

1. Plate 63 (Qaytbay, Cairo, Egypt. Kursi) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}
2. Plate 63 (Qaytbay, Cairo, Egypt. Minbar) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}
3. Plate 63 (al-Burdayni mosque, Cairo, Egypt. Minbar) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}

• Wade photo EPC 063
• Wade photo EPC 078

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