Isfahan - The Charbagh Madrasah

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 12 regular pentagons.
• Contains three regular 10-pointed star polygons with vertex angle of 108°.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has one finite interlace and five infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 553 polygons.

1. Vol3, Figure 113, page 161 (Charbagh Madrasah, Isfahan, Iran. Small motif extended to a repeat pattern) of Mahmood Maher al-Naqsh. Design and execution of drawing in Iranian tilework, Islamic period, Reza Abbasi Museum, 1983. [iran] {Good collection of Iranian patterns, text in Persian} Available on Internet.(1122AD, 515AH)

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