There are 100 distinct hexagons!

(And, in case you are curious, 20 triangles, 57 quadrilaterals, 60 pentagons, 96 heptagons, 48 octagons, 36 nonagons, 18 decagons, no undecagons, and seven dodecagons, for a total of 442 connected nondegenerate polygons in the figure.)

Link here for a description of how we used GIS to find this solution.

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Last modified: Monday June 12, 2000.