Two Hinged Dissections of a Gnomon to a Square
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This Demonstration shows Hanegraaf's and Kelland's hinged dissections of a gnomon to a square.
Contributed by: Izidor Hafner (March 2011)
Based on work by: Greg N. Frederickson
Open content licensed under CC BY-NC-SA
G. N. Frederickson, Hinged Dissections: Swinging & Twisting, New York: Cambridge University Press, 2002 pp. 27, 101.