Carved door, Cairo
 
 
 
 
 
 
 data201/DOOR1
(Click on image for high-quality PDF version) 
 
Geometry
 
 
-  The symmetry group of the tiling is *632 (p6m).
 -  All the internal angles of the constituent polygons are a multiple of 30°.
 -  Contains one regular hexagon.
 -  Contains one regular 6-pointed star polygon with vertex angle of 60°.
 -  Contains one regular 6-pointed star polygon with vertex angle of 120° - composed of kites.
 -  There are three non-regular reflective tiles (including 2 kites).
 -  The tiling satisfies the interlace condition and has two finite interlaces and  no infinite interlace with straight cross-overs.
 -  The tiling is edge-to-edge.
 -  As drawn, contains about 235 polygons.
 
 
 
 
References
 
 
Publications referenced: 
 
 
-  Flickr photo (Han Al-halili, Cairo, Egypt. Carved door)  of Not specific. Personal Communication, Information sent to the author,	21c.	 [pc] 
 
 
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