Geodesic
Two notes on geometry
Matematičeskoe obrazovanie, no. 4 (2021), pp. 3-5 
V. B. Drozdov. Two notes on geometry. Matematičeskoe obrazovanie, no. 4 (2021), pp. 3-5. http://geodesic.mathdoc.fr/item/MO_2021_4_a1/
@article{MO_2021_4_a1,
     author = {V. B. Drozdov},
     title = {Two notes on geometry},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {3--5},
     year = {2021},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2021_4_a1/}
}
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ER  - 
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Voir la notice de l'article provenant de la source Math-Net.Ru

The first note tells how the author, without planning this in advance, got an unobvious double geometric inequality. The second provides a short, simple, and easy-to-remember proof of Stewart's theorem.