Dissection of a Spherical Square into Two Spherical Regular Pentagons
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This Demonstration shows a dissection of two spherical regular pentagons into a spherical square.
Contributed by: Izidor Hafner (February 2017)
Open content licensed under CC BY-NC-SA
The dissection of a plane pentagon to a square is described in .
 G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge University Press, 2002 p. 120.