104.37 An inequality for the tanradii of a triangle
References 1. Eric W. Weisstein, Perspective Triangles, From MathWorld A Wolfram Web Resource http:/mathworld.wolfram.com/PerspectiveTriangles.html 2. Eric W. Weisstein, Barycentric Coordinates, From MathWorld A Wolfram Web Resource http:/mathworld.wolfram.com/BarycentricCoordinates.html 10.1017/mag.2020.114 THANH TUNG VU (c) The Mathematical Association 2020 250 Quang Trung, Namdinh City, Vietnam e mail: tungvtt@gmail.com QUOC MY VU 23 Ta Hien, Hoan Kiem District, Hanoi, Vietnam e mail: vuquocmy@gmail.com
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