Euler’s inequality for the circumradius and inradius of a triangle
Shirali, Shailesh (2020) Euler’s inequality for the circumradius and inradius of a triangle. At Right Angles (6). pp. 5862. ISSN 25821873

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Abstract
For any arbitrary triangle ABC, let R denote its circumradius and r its inradius (Figure 1). It was the SwissGerman mathematician Leonhard Euler who first observed that regardless of the shape of the triangle, the following inequality is invariably true:
Item Type:  Articles in APF Magazines  

Authors:  Shirali, Shailesh  
Document Language: 


Uncontrolled Keywords:  Euler, Inequality, Circumcircle, Circumradius, Incircle, Inradius  
Subjects:  Natural Sciences > Mathematics  
Divisions:  Azim Premji University > University Publications > At Right Angles  
Full Text Status:  Public  
URI:  http://publications.azimpremjiuniversity.edu.in/id/eprint/2318  
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