Kürschák's Dodecagon

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József Kürschák proved that a dodecagon (a regular 12 -sided polygon) inscribed in the unit circle has area 3. He split the dodecagon into triangles and moved one quarter of them to complete three unit squares.

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Contributed by: Sándor Kabai and Ferenc Holló Szabó (March 2011)
Additional contributions by: Ralf Schaper
Open content licensed under CC BY-NC-SA


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For more information, follow this link about József Kürschák.



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