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 
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     author = {O. T. Pop and M. Dalc{\'\i}n },
     title = {Equalities and {Inequalities} in the {Excircle} {Quadrilateral} of a {Convex} {Quadrilateral}},
     journal = {Journal for geometry and graphics},
     pages = {171--179},
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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/