Hinged Dissection of a Pentagram to a Decagon
This Demonstration shows a hinged dissection of a pentagram to a decagon.
Frederickson used Lindgren's six-piece dissection of a pentagram to decagon to turn it into this seven-piece hinged dissection.
 G. N. Frederickson, Hinged Dissections: Swinging & Twisting, New York: Cambridge University Press, 2002 pp. 139–140.