On Trigonometrical Proofs of the Steiner-Lehmus Theorem

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Oláh-Gál, Róbert and Sándor, József (2009) On Trigonometrical Proofs of the Steiner-Lehmus Theorem. Research report collection, 12 (1).


We offer a survey of some less known or new trigonometrical proofs of the Steiner-Lehmus theorem. A new proof of a recent refined variant is pointed out, too.

Item type Article
URI https://vuir.vu.edu.au/id/eprint/17685
Subjects Historical > FOR Classification > 0101 Pure Mathematics
Current > Collections > Research Group in Mathematical Inequalities and Applications (RGMIA)
Keywords trigonometrical proofs, Steiner-Lehmus theorem, isosceles, triangles, angles
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