Swing-and-Twist Hinged Dissection of One Regular Heptagon into Seven
Initializing live version
Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
This Demonstration shows a 21-piece dissection of a regular heptagon into seven regular heptagons.
Contributed by: Izidor Hafner (March 2017)
Open content licensed under CC BY-NC-SA
 G. N. Frederickson, Hinged Dissections: Swinging & Twisting, New York: Cambridge University Press, 2002 p. 223.