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Planes of Budapest

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Visit this site: http://www.maa.org/mathland/mathtrek_10_3_00.html

Author:Ivars Peterson (MathTrek)
Description: Nearly every Sunday during the winter of 1933 in Budapest, a small group of students would meet somewhere in the city at a park or cafe to discuss mathematics. The gathering typically included Paul Erdös (1913-1996), György (George) Szekeres, and Esther Klein. Klein once asked if anyone could prove that a convex quadrilateral has to be present in any given set of five points lying in a plane, with no three points in a line. After letting her friends ponder the problem, Klein explained her proof. Szekeres and Erdös then proposed an elegant problem that is still attracting mathematical attention...

Levels: High School (9-12), College
Languages: English
Resource Types: Articles
Math Topics: Triangles and Other Polygons, History and Biography

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