Tarry Point: Geometry, Triangle, Concurrent Lines

Splitter (geometry): Geometry, Triangle, Concurrent Lines, Cleaver (geometry)

Nagel Point: Triangle, Excircle, Concurrent Lines, Christian Heinrich von Nagel, Semiperimeter

Trisected Perimeter Point: Geometry, Triangle, Point (geometry),

Isogonal Conjugate: Geometry, Point (geometry), Triangle, Reflection (mathematics)