Convex Figures with Didom Pairs

A didom is a polyform made by joining two doms, 2×1 right triangles, at their short legs, long legs, half long legs, or hypotenuses. Here are the 13 didoms:

Below I show how to make a minimal convex figure using copies of two didoms, at least one of each. These solutions are not necessarily unique, nor are their tilings. If you find a solution with fewer tiles, or solve an unsolved case, please write.

See also Convex Figures with Didom Triplets.

  12345678910111213
1•××××××××××××
2ו×242××326×3
3×ו××××××××××
4×2ו1252×27432
5×4×12•×2××××××
6×2×5ו×××××××
7×××22ו×3×2×2
8××××××ו×××××
9×3×2××3ו××2×
10×2×7××××ו×××
11×6×4××2××ו×2
12×××3××××2×ו3
13×3×2××2×××23•

Last revised 2020-05-18.

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Col. George Sicherman [ HOME | MAIL ]