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Geometric Proofs of the Weitzenböck and Hadwiger-Finsler Inequalities

by Claudi Alsina (Universitat Politecnica de Catalunya) and Roger B. Nelsen (Lewis & Clark College)

This article originally appeared in:
Mathematics Magazine
June, 2008

Subject classification(s): Geometry and Topology | Plane Geometry
Applicable Course(s): 4.9 Geometry

The Fermat point of a triangle is used to present simple geometric proofs of the inequalities in the title of the paper.

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