Bourgoin, Plate 138
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- The symmetry group of the tiling is *442 (p4m).
- All the internal angles of the constituent polygons are a multiple of 1°.
- Contains one regular 12-pointed star polygon with vertex angle of 66°.
- Contains one regular 20-pointed star polygon with vertex angle of 54°.
- There are 10 non-regular reflective tiles (including 2 kites) and four reflective pairs.
- 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 1137 polygons.
- Plate 60 (al-Fadawiyya, Cairo, Egypt. Dome) from [bour0] (1479-81AD, 884-6AH)
- Fig 7.2a from [ww]
- Page 268 from [abas]
- Plate 138 from [bourgoin]
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