Freese's Dissection of a Hexagram into Four Hexagrams

This Demonstration shows Freese's dissection of a hexagram into four congruent hexagrams.


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See "The 'Lost' Manuscript of Ernst Irving Freese" in [1, p. 26].
[1] G. N. Frederickson, Piano-Hinged Dissections: Time to Fold!, Wellesley, MA: A. K. Peters, 2006.
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