For all your mosque-floor needs

[fivemack]

This must be well-known, but I only discovered the construction this afternoon.

The sides of the edge pentagons are 1/3 the side of the big ones; the radius of the discs in the corners is arbitrary and picked to look nice. Probably the larger discs should have calligraphic decorations in them.

Comments

[del-c.livejournal.com]

Interestingly, for the three regular polygons you can do this with at all (square, pentagon, and hexagon), the inside polygons are all 1/3 the size of the outside ones, and have to be.