Pedal polygons - Daniela Ferrarello, Maria Flavia Mammana and Mario Pennisi We study the pedal polygon H1H2...Hn of a point P with respect to a...
Properties of valtitudes and vaxes of a convex quadrilateral - Maria Flavia Mammana, Biagio Micale, and Mario Pennisi We introduce the vaxes...
The Droz-Farny circles of a convex quadrilateral - Maria Flavia Mammana, Biagio Micale and Mario Pennisi The Droz-Farny circles of a triangle are...
Orthic quadrilaterals of a convex quadrilateral - Maria Flavia Mammana, Biagio Micale and Mario Pennisi We introduce the orthic quadrilaterals of...
On the centroids of polygons and polyhedra - Maria Flavia Mammana, Biagio Micale and Mario Pennisi In this paper we introduce the centroid of any...
