The Excircles and the Nagel Point

The sketch below shows the four tritangent circles (the incircle and the three excircles). The Nagel point is the point of currency of the segments from the point of concurrency of each side to the vertex of the opposite side.

 

Steve Phelps —

 
Type de ressources
Activité
Balises
geometry  triangle 
Tranche d'âges
14 – 18
Langue
English
 
 
Version GeoGebra
5.0
Vues
5034
Contacter l'auteur de la ressource.
 
 
© 2026 International GeoGebra Institute