Geodesic
Triangles with specified values of the incircle and circumcircle radii
Matematičeskoe obrazovanie, no. 2 (2021), pp. 28-33 
S. F. Osinkin. Triangles with specified values of the incircle and circumcircle radii. Matematičeskoe obrazovanie, no. 2 (2021), pp. 28-33. http://geodesic.mathdoc.fr/item/MO_2021_2_a3/
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     author = {S. F. Osinkin},
     title = {Triangles with specified values of the incircle and circumcircle radii},
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     url = {http://geodesic.mathdoc.fr/item/MO_2021_2_a3/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

The analysis of triangles given by the radii of the inscribed and circumscribed circles presented in this article can be considered as an example of the successful application of a specially developed universal method for determining a triangle by its elements.

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