A pentabolo or pentatan is a plane figure formed
by joining five equal isosceles right triangles edge to equal edge.
There are 30 different pentaboloes, not counting reflections and rotations.
Two pentaboloes are compatible
if there is a polyabolo that can be tiled by each.
Here I show minimal known compatibility figures for pairs of
6 or More Tiles
Last revised 2014-10-23.
Back to Pairwise Compatibility.
Back to Polyform Compatibility.
Back to Polyform Curiosities.
Col. George Sicherman