Three uses in Cairo
data208/CL63
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Geometry
- 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 945 polygons.
References
Publications referenced:
- Plate 63 (Qaytbay, Cairo, Egypt. Kursi) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}
- Plate 63 (Qaytbay, Cairo, Egypt. Minbar) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}
- Plate 63 (al-Burdayni mosque, Cairo, Egypt. Minbar) of J Collin. Étude pratique de la décoration polygonale arabe, Paris, 1911. ISBN . [collin] {}
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