# Haberdasher's Problem

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A square is cut into four pieces that can be rearranged to form an equilateral triangle. Henry Dudeney published this puzzle in 1902.

Contributed by: George Beck (October 2007)

Open content licensed under CC BY-NC-SA

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detailSectionParagraph## Permanent Citation

"Haberdasher's Problem"

http://demonstrations.wolfram.com/HaberdashersProblem/

Wolfram Demonstrations Project

Published: October 24 2007