Dissecting the Net of an Octahedron to the Net of a Tetrahedron
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This Demonstration shows a dissection of the net of an octahedron to the net of a tetrahedron.
Contributed by: Izidor Hafner (April 2014)
Open content licensed under CC BY-NC-SA
 G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge University Press, 1997 p. 246. www.cs.purdue.edu/homes/gnf/book.html.