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One square and an odd number of triangles

  • Martin Aigner
  • Günter M. Ziegler
Chapter

Abstract

Now, this looks like a classical question of Euclidean geometry, and one could have guessed that surely the answer must have been known for a long time (if not to the Greeks). But when Fred Richman and John Thomas popularized the problem in the 1960s they found to their surprise that no one knew the answer or a reference where this would be discussed.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Martin Aigner
    • 1
  • Günter M. Ziegler
    • 1
  1. 1.Institut für MathematikFreie Universität BerlinBerlinGermany

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