Pentabolo Odd Pairs
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.
An odd pair is a figure that can be tiled by an odd number of
each of two polyforms.
Here I show minimal known pentabolo odd pairs.
If you find a smaller solution or solve an unsolved case, please write.
Last revised 2014-02-20.
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Col. George Sicherman