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The American Mathematical Monthly Volume 126, 2019 - Issue 4
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Notes

A Napoleonic Theorem for Trapezoids

Stephan BerendonkDidaktik der Mathematik, Universität Duisburg-Essen, 45127Essen, [email protected]
Pages 367-369 | Received 22 Mar 2018, Accepted 05 Sep 2018, Published online: 22 Apr 2019

References

  • Grünbaum, B. (2012). Is Napoleon’s theorem really Napoleon’s theorem? Amer. Math. Monthly. 119(6): 495–501.
  • De Villiers, M. (2000). Generalizing van Aubel using duality. Math. Mag. 73(4): 303–307. DOI: 10.2307/2690979.

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