Some triangle centers associated with the tritangent circles - Nikolas Dergiades and Juan Carlos Salazar We investigate two interesting special...
On the mixtilinear incircles and excircles - Khoa Lu Nguyen and Juan Carlos Salazar A mixtilinear incircle (respectively excircle) of a triangle...
On the areas of the intouch and extouch triangles - Juan Carlos Salazar We prove an interesting relation among the areas of the triangles whose...
Harcourt's theorem - Nikolaos Dergiades and Juan Carlos Salazar We give a proof of Harcourt's theorem that if the signed distances from the...
