Dissection of One Regular Heptagon into Seven
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This Demonstration shows a 21-piece dissection of a regular heptagon into seven regular heptagons.
Contributed by: Izidor Hafner (January 2017)
Open content licensed under CC BY-NC-SA
 G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge University Press, 1997 p. 205.
"Dissection of One Regular Heptagon into Seven"
Wolfram Demonstrations Project
Published: January 5 2017