Twist-Hinged Dissection of a Hexagram to Two Hexagons
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This Demonstration shows Frederickson's twist-hinged dissection of a hexagram to two hexagons.
Contributed by: Izidor Hafner (April 2014)
Open content licensed under CC BY-NC-SA
 G. N. Frederickson, Hinged Dissections: Swinging & Twisting, New York: Cambridge University Press, 2002 p. 233. www.cs.purdue.edu/homes/gnf/book2.html.