A polyform of 30-60-90 triangles. The name was coined by Ed Pegg, Jr. because of the 30-60-90 triangle's use in mechanical drawing and drafting. The Eternity puzzle is based on a set of 209 polydrafters.
See also30-60-90 Triangle, Eternity, Polyform
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ReferencesPegg, E. Jr. "Polyform Patterns." In Tribute to a Mathemagician (Ed. B. Cipra, E. D. Demaine, M. L. Demaine, and T. Rodgers). Wellesley, MA: A K Peters, pp. 119-125, 2004.Vichera, M. "Tridrafters." http://www.vicher.cz/puzzle/polyform/tridr/triddr.html.
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Cite this as:
Weisstein, Eric W. "Polydrafter." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Polydrafter.html