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Hadwiger-Finsler inequality

Author:
Lamberto Lamberti
Topic:
Triangles
The Hadwiger–Finsler inequality is a result on the geometry of triangles in the Euclidean plane, named after the mathematicians Hugo Hadwiger and Paul Finsler. It states that if a triangle in the plane has side lengths a, b and c and area T, then: http://planetmath.org/HadwigerFinslerInequality

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