Lindgren's Dissection of One Decagram {10/3} into Two Pentagrams {5/2}

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This Demonstration shows Lindgren's dissection of one decagram {10/3} into two pentagrams {5/2}.

Contributed by: Izidor Hafner (March 2011)
Based on work by: Greg N. Frederickson
Open content licensed under CC BY-NC-SA


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Details

The notation means join every vertex of a regular -gon.

G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge Univ. Press, 2002 p. 173.



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