THE TEACHING OF MATHEMATICS

THE TEACHING OF MATHEMATICS
Proofs for old and new triangle inequalities
D. M. B\u atine\c tu-Giurgiu and Neculai Stanciu

Abstract

In this paper, we give new elementary proofs for some old triangle inequalities and we also present proofs for new inequalities in triangle.

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Keywords: Problem solving; Bergström's inequality; Radon's inequality; Euler's inequality; Mitrinović's; Padoa's inequality; B\u atine\c tu's inequality.

Pages:  30$-$34     

Volume  XXIII ,  Issue  1 ,  2020