Geodesic
Equalities and Inequalities in the Excircle Quadrilateral of a Convex Quadrilateral
Journal for geometry and graphics, Tome 27 (2023) no. 2, pp. 171-179

Voir la notice de l'article provenant de la source Heldermann Verlag

We demonstrate some identities and inequalities that occur in the quadrilateral determined by the centers of the excircles in a convex quadrilateral.
Classification : 51M04
Mots-clés : Bicentric quadrilaterals 
O. T. Pop; M. Dalcín. Equalities and Inequalities in the Excircle Quadrilateral of a Convex Quadrilateral. Journal for geometry and graphics, Tome 27 (2023) no. 2, pp. 171-179. http://geodesic.mathdoc.fr/item/JGG_2023_27_2_JGG_2023_27_2_a4/
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     author = {O. T. Pop and M. Dalc\~A\-n},
     title = {Equalities and {Inequalities} in the {Excircle} {Quadrilateral} of a {Convex} {Quadrilateral}},
     journal = {Journal for geometry and graphics},
     pages = {171--179},
     year = {2023},
     volume = {27},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JGG_2023_27_2_JGG_2023_27_2_a4/}
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