Agra Fort, Agra

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains two squares.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 267 polygons.

1. Part 4, Plate XXVII, bottom right (Fatehpur Sikri, Friday Mosque, India) of E W Smith,. The Moghul Architecture of Fathpur-Sikri, Archaeological Survey of India, 1896. [smith2] (1571AD, 978AH)
2. Photo by David Wade: IND 0312 (Agra Fort, India) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}

• Wade photo IND 0312

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

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