Dissecting a Dodecagram into a Triangle

This Demonstration shows Lindgren's dissection of a dodecagram {12/2} into a triangle.

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The notation means join every vertex of a regular -gon.
G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge Univ. Press, 2002 p. 182.
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Related Curriculum Standards

US Common Core State Standards, Mathematics