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Bradley's Two-Triangles-to-One Dissection

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This Demonstration shows Bradley's dissection of two triangles to one. Bradley used equilateral triangles and the dissection illustrated the Pythagorean theorem.

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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H. C. Bradley's solution to the problem appeared in the American Mathematical Monthly in 1930.

G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge University Press, 1997 pp. 40–41.

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