Geodesic
Oblique altitudes and bisectors
Visual Mathematics, Tome 5 (2003) no. 4

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

In this paper the concepts of (1) oblique altitudes of a triangle and (2) oblique bisectors of the sides of a triangle are introduced as a generalisation of the concepts of altitudes and of perpendicular bisectors. Several properties of oblique altitudes and oblique bisectors will be presented.
Classification : 51M04 
Paulus Gerdes. Oblique altitudes and bisectors. Visual Mathematics, Tome 5 (2003) no. 4. http://geodesic.mathdoc.fr/item/VM_2003_5_4_a1/
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     url = {http://geodesic.mathdoc.fr/item/VM_2003_5_4_a1/}
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