Shirdar Madrassa (Registan complex), Samarkand

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 18°.
• Contains three regular five-pointed star polygons with vertex angle of 72°.
• Contains one regular 10-pointed star polygon with vertex angle of 108°.
• There are five non-regular reflective tiles.
• The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 229 polygons.

• Figure 27 (Ten-fold motif of Type VIII) of A. J. Lee. Islamic star patterns, Muqarnas vol. 4. pp182-197 Pressmark PP.8.M, 1987. [lee] {Important paper on star patterns} Available on Internet.
• Leather Roll(4) of Mirza Akber. Persian decoration of Mirza Akber, Victoria and Albert Museum, NAL, 1898. [akber] {Pressmark VA.1898.0001}

• Wade photo TRA 0409
• Wade photo MA 044

• Tiling whose angles are a multiple of 18°

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