Geodesic
Proofs for old and new triangle inequalities
The Teaching of Mathematics, XXIII (2020) no. 1, p. 30 .

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

In this paper, we give new elementary proofs for some old triangle inequalities and we also present proofs for new inequalities in triangle.
Classification : 97H30, H34
Keywords: problem solving, Bergström's inequality, Radon's inequality, Euler's inequality, Mitrinović's, Padoa's inequality, Bătineţu's inequality. 
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     author = {D. M. B\u{a}tine\c{t}u-Giurgiu and Neculai Stanciu},
     title = {Proofs for old and new triangle inequalities},
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D. M. Bătineţu-Giurgiu; Neculai Stanciu. Proofs for old and new triangle inequalities. The Teaching of Mathematics, XXIII (2020) no. 1, p. 30 . http://geodesic.mathdoc.fr/item/TM2_2020_XXIII_1_a3/