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Erich's Combinatorial Geometry Page

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Visit this site: http://www.stetson.edu/~efriedma/comb.html
Author:Erich Friedman
Description: Famous and infamous problems with diagrams and some solutions and proofs. Includes: tree planting problems; circles through points; maximizing squares; triangulating squares; triangulating triangles; lines avoiding squares; lines avoiding points; points in squares (the Heilbronn problem, minimizing maximum rectangles, travelling salesman cycles); and graph theory (large regular planar graphs, regular graphs with large girth).
Levels: High School (9-12), College, Research
Languages: English
Resource Types: Problems/Puzzles
Math Topics: Combinatorics, Graph Theory, Convex/Discrete Geometry

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