Nine-point Center = Circumcenter of the Orthic Triangle.

Nine-point Center = Circumcenter of the Pedal Triangle of the Circumcenter.

Nine-point Center = Circumcenter of the Pedal Triangle of the Orthocenter.

Nine-point Center = Circumcenter of the Cyclocevian Triangle of the Centroid.

Nine-point Center = Circumcenter of the Cyclocevian Triangle of the Orthocenter.

Nine-point Center = Orthocenter of the Half-cevian Triangle of the Centroid.

Nine-point Center = Nine-Point Center of the s-Reflection Triangle of the Circumcenter.

Nine-point Center = Circumcenter of the s-Reflection Triangle of the Kosnita Point.

Nine-point Center = Circumcenter of the Euler Triangle.

Nine-point Center = Circumcenter of the Feuerbach Triangle.

Nine-point Center = Nine-Point Center of the Fuhrmann Triangle.

Nine-point Center = Orthocenter of the Medial Triangle of the Medial Triangle.

Nine-point Center = Orthocenter of the Medial Triangle of the Orthic Triangle.

Nine-point Center = Bevan Point of the Orthic Triangle of the Orthic Triangle.

Nine-point Center = Orthocenter of the Medial Triangle of the Euler Triangle.

Nine-point Center = Orthocenter of the Medial Triangle of the Feuerbach Triangle.

Nine-point Center = Bevan Point of the Orthic Triangle of the Feuerbach Triangle.

Nine-point Center = Circumcenter of the Orthic Triangle of the Fuhrmann Triangle.

Nine-point Center = Tarry Point of the Medial Triangle of the First Brocard Triangle.

Nine-point Center = Nine-Point Center of the Excentral Triangle of the Medial Triangle.

Nine-point Center = Nine-Point Center of the Excentral Triangle of the Orthic Triangle.

Nine-point Center = Nine-Point Center of the Anticomplementary Triangle of the Orthic Triangle.

Nine-point Center = Incenter of the Tangential Triangle of the Orthic Triangle.

Nine-point Center = Nine-Point Center of the Excentral Triangle of the Euler Triangle.

Nine-point Center = Nine-Point Center of the Anticomplementary Triangle of the Euler Triangle.

Nine-point Center = Nine-Point Center of the Excentral Triangle of the Feuerbach Triangle.

Nine-point Center = Nine-Point Center of the Anticomplementary Triangle of the Feuerbach Triangle.

Nine-point Center = Incenter of the Tangential Triangle of the Feuerbach Triangle.

Nine-point Center = Circumcenter of the Circum-Incentral Triangle of the Medial Triangle.

Nine-point Center = Circumcenter of the Circum-Medial Triangle of the Medial Triangle.

Nine-point Center = Circumcenter of the Circum-Orthic Triangle of the Medial Triangle.

Nine-point Center = Circumcenter of the Circum-Incentral Triangle of the Orthic Triangle.

Nine-point Center = Circumcenter of the Circum-Medial Triangle of the Orthic Triangle.

Nine-point Center = Circumcenter of the Circum-Orthic Triangle of the Orthic Triangle.

Nine-point Center = Circumcenter of the Circum-Incentral Triangle of the Euler Triangle.

Nine-point Center = Circumcenter of the Circum-Medial Triangle of the Euler Triangle.

Nine-point Center = Circumcenter of the Circum-Orthic Triangle of the Euler Triangle.

Nine-point Center = Circumcenter of the Circum-Incentral Triangle of the Feuerbach Triangle.

Nine-point Center = Circumcenter of the Circum-Medial Triangle of the Feuerbach Triangle.

Nine-point Center = Circumcenter of the Circum-Orthic Triangle of the Feuerbach Triangle.

Nine-point Center = de Longchamps Point of the Euler Triangle of the Medial Triangle.

Nine-point Center = Tarry Point of the First Brocard Triangle of the Medial Triangle.

Nine-point Center = de Longchamps Point of the Euler Triangle of the Orthic Triangle.

Nine-point Center = Tarry Point of the First Brocard Triangle of the Orthic Triangle.

Nine-point Center = de Longchamps Point of the Euler Triangle of the Euler Triangle.

Nine-point Center = Tarry Point of the First Brocard Triangle of the Euler Triangle.

Nine-point Center = de Longchamps Point of the Euler Triangle of the Feuerbach Triangle.

Nine-point Center = Tarry Point of the First Brocard Triangle of the Feuerbach Triangle.

Nine-point Center = Circumcenter of the Euler Triangle of the Fuhrmann Triangle.

Nine-point Center = Circumcenter of the Feuerbach Triangle of the Fuhrmann Triangle.

Nine-point Center = Nine-Point Center of the Fuhrmann Triangle of the Fuhrmann Triangle.

Nine-point Center = Steiner Point of the Euler Triangle of the First Brocard Triangle.

Nine-point Center = Midpoint of the Incenter and Nagel Point of the Euler Triangle.

Nine-point Center = Midpoint of the Centroid and Centroid of the Euler Triangle.

Nine-point Center = Midpoint of the Circumcenter and Orthocenter.

Nine-point Center = Midpoint of the Circumcenter and Circumcenter of the Anticomplementary Triangle.

Nine-point Center = Midpoint of the Circumcenter and Orthocenter of the Euler Triangle.

Nine-point Center = Midpoint of the Orthocenter and Orthocenter of the Medial Triangle.

Nine-point Center = Midpoint of the Center of the Orthocentroidal circle and Centroid.

Nine-point Center = Midpoint of the Center of the Orthocentroidal circle and Centroid of the Medial Triangle.

Nine-point Center = Midpoint of the Center of the Orthocentroidal circle and Centroid of the Anticomplementary Triangle.

Nine-point Center = Midpoint of the Circumcenter of the Intouch Triangle and Nagel Point of the Euler Triangle.

Nine-point Center = Midpoint of the Nine-Point Center of the Excentral Triangle and Orthocenter.

Nine-point Center = Midpoint of the Nine-Point Center of the Excentral Triangle and Orthocenter of the Euler Triangle.

Nine-point Center = Midpoint of the Centroid of the Anticomplementary Triangle and Centroid of the Euler Triangle.

Nine-point Center = Midpoint of the Circumcenter of the Anticomplementary Triangle and Orthocenter of the Medial Triangle.

Nine-point Center = Midpoint of the Circumcenter of the Anticomplementary Triangle and Nine-Point Center of the Excentral Triangle.

Nine-point Center = Midpoint of the Circumcenter of the Anticomplementary Triangle and Nine-Point Center of the Anticomplementary Triangle.

Nine-point Center = Midpoint of the Nine-Point Center of the Anticomplementary Triangle and Orthocenter.

Nine-point Center = Midpoint of the Nine-Point Center of the Anticomplementary Triangle and Orthocenter of the Euler Triangle.

Nine-point Center = Midpoint of the Incenter of the Euler Triangle and Spieker Center.

Nine-point Center = Midpoint of the Centroid of the Euler Triangle and Centroid of the Medial Triangle.

Nine-point Center = Midpoint of the Orthocenter of the Euler Triangle and Orthocenter of the Medial Triangle.

Nine-point Center = Midpoint of the Nine-Point Center of the Euler Triangle and Nine-Point Center of the Medial Triangle.

Nine-point Center = Midpoint of the Symmedian Point of the Euler Triangle and Symmedian Point of the Medial Triangle.

Nine-point Center = Midpoint of the Gergonne Point of the Euler Triangle and Mittenpunkt.

Nine-point Center = Midpoint of the Gergonne Point of the Euler Triangle and Gergonne Point of the Medial Triangle.

Nine-point Center = Midpoint of the Nagel Point of the Euler Triangle and Nagel Point of the Medial Triangle.

Nine-point Center = Midpoint of the Nagel Point of the Euler Triangle and Orthocenter of the Excentral Triangle.

Nine-point Center = Midpoint of the Center of the Apollonius Circle of the Euler Triangle and Center of the Apollonius Circle of the Medial Triangle.

Nine-point Center = Reflection of the Circumcenter in the Nine-Point Center of the Medial Triangle.

Nine-point Center = Reflection of the Circumcenter of the Orthic Triangle in the Nine-point Center.

Nine-point Center = Reflection of the Nine-Point Center of the Excentral Triangle in the Nine-Point Center of the Medial Triangle.

Nine-point Center = Reflection of the Circumcenter of the Anticomplementary Triangle in the Nine-Point Center of the Euler Triangle.

Nine-point Center = Reflection of the Nine-Point Center of the Anticomplementary Triangle in the Nine-Point Center of the Medial Triangle.

Nine-point Center = Reflection of the Circumcenter of the Euler Triangle in the Nine-point Center.

Nine-point Center = Reflection of the Circumcenter of the Euler Triangle in the Circumcenter of the Orthic Triangle.

Nine-point Center = Reflection of the Circumcenter of the Euler Triangle in the Circumcenter of the Feuerbach Triangle.

Nine-point Center = Reflection of the Circumcenter of the Feuerbach Triangle in the Nine-point Center.

Nine-point Center = Reflection of the Circumcenter of the Feuerbach Triangle in the Circumcenter of the Orthic Triangle.

Nine-point Center = Reflection of the Orthocenter in the Nine-Point Center of the Euler Triangle.

Nine-point Center = Reflection of the Nine-point Center in the Circumcenter of the Orthic Triangle.

Nine-point Center = Reflection of the Nine-point Center in the Circumcenter of the Euler Triangle.

Nine-point Center = Reflection of the Nine-point Center in the Circumcenter of the Feuerbach Triangle.

Nine-point Center = Reflection of the Orthocenter of the Medial Triangle in the Nine-Point Center of the Medial Triangle.

Nine-point Center = Reflection of the Circumcenter of the Orthic Triangle in the Circumcenter of the Euler Triangle.

Nine-point Center = Reflection of the Circumcenter of the Orthic Triangle in the Circumcenter of the Feuerbach Triangle.

Nine-point Center = Reflection of the Orthocenter of the Orthic Triangle in the Nine-Point Center of the Orthic Triangle.

Nine-point Center = Reflection of the Orthocenter of the Euler Triangle in the Nine-Point Center of the Euler Triangle.

Nine-point Center = Reflection of the Circumcenter of the Feuerbach Triangle in the Circumcenter of the Euler Triangle.

Nine-point Center = Reflection of the Orthocenter of the Feuerbach Triangle in the Nine-Point Center of the Feuerbach Triangle.

Nine-point Center = Inverse of the Circumcenter in the Orthocentroidal Circle.

Nine-point Center = Inverse of the Circumcenter in the Circumcircle of the Fourth Brocard Triangle.

Nine-point Center = Harmonic Congugate of the Circumcenter with respect to the Centroid and Orthocenter.

Nine-point Center = Complement of the Circumcenter.

Nine-point Center = Complement of the Orthocenter of the Medial Triangle.

Nine-point Center = Complement of the Nine-Point Center of the Excentral Triangle.

Nine-point Center = Complement of the Nine-Point Center of the Anticomplementary Triangle.

Nine-point Center = Complement of the Circumcenter of the Circum-Incentral Triangle.

Nine-point Center = Complement of the Circumcenter of the Circum-Medial Triangle.

Nine-point Center = Complement of the Circumcenter of the Circum-Orthic Triangle.

Nine-point Center = Complement of the Midpoint of the Orthocenter and de Longchamps Point.

Nine-point Center = Complement of the Midpoint of the Bevan Point and Incenter.

Nine-point Center = Complement of the Midpoint of the Steiner Point and Tarry Point.

Nine-point Center = Complement of the Reflection of the Center of the Orthocentroidal circle in the Centroid.

Nine-point Center = Complement of the Reflection of the Orthocenter in the Nine-point Center.

Nine-point Center = Complement of the Reflection of the Symmedian Point in the Center of the Brocard circle.

Nine-point Center = Complement of the Perspector of Triangle ABC and Circumcevian Triangle of the Circumcenter.

Nine-point Center = Complement of the Perspector of the Medial Triangle and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Complement of the Perspector of the Medial Triangle and First Brocard Triangle.

Nine-point Center = Complement of the Perspector of the Cyclocevian Triangle of the Orthocenter and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Complement of the Perspector of the Cyclocevian Triangle of the Orthocenter and First Brocard Triangle.

Nine-point Center = Complement of the Perspector of the Half-cevian Triangle of the Centroid and Euler Triangle.

Nine-point Center = Complement of the Perspector of the Medial Triangle and Tangential Triangle.

Nine-point Center = Complement of the Perspector of the Circum-Incentral Triangle and Medial Triangle.

Nine-point Center = Complement of the Perspector of the Circum-Incentral Triangle and Tangential Triangle.

Nine-point Center = Complement of the Perspector of the Circum-Incentral Triangle and First Brocard Triangle.

Nine-point Center = Complement of the Perspector of the Fuhrmann Triangle and Medial Triangle.

Nine-point Center = Complement of the Perspector of the Fuhrmann Triangle and Tangential Triangle.

Nine-point Center = Complement of the Perspector of the First Brocard Triangle and Tangential Triangle.

Nine-point Center = Complement of the Perspector of the First Brocard Triangle and Fuhrmann Triangle.

Nine-point Center = Anticomplement of the Nine-Point Center of the Medial Triangle.

Nine-point Center = Anticomplement of the Midpoint of the Circumcenter and Nine-point Center.

Nine-point Center = Isogonal Conjugate of the Kosnita Point.

Nine-point Center = Isogonal Complement of the Orthocenter.

Nine-point Center = Isogonal Complement of the Circumcenter of the Anticomplementary Triangle.

Nine-point Center = Isogonal Complement of the Orthocenter of the Euler Triangle.

Nine-point Center = Isogonal Complement of the Reflection of the Circumcenter in the Nine-point Center.

Nine-point Center = Isogonal Complement of the Reflection of the Bevan Point in the Spieker Center.

Nine-point Center = Isogonal Complement of the Reflection of the Centroid in the Center of the Orthocentroidal circle.

Nine-point Center = Isogonal Complement of the Reflection of the de Longchamps Point in the Circumcenter.

Nine-point Center = Isogonal Complement of the Perspector of Triangle ABC and Euler Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Medial Triangle and Circumcevian Triangle of the Circumcenter.

Nine-point Center = Isogonal Complement of the Perspector of the Orthic Triangle and Circum-Orthic Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Orthic Triangle and s-Reflection Triangle of the Orthocenter.

Nine-point Center = Isogonal Complement of the Perspector of the Anticomplementary Triangle and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Isogonal Complement of the Perspector of the Cyclocevian Triangle of the Centroid and s-Reflection Triangle of the Orthocenter.

Nine-point Center = Isogonal Complement of the Perspector of the Orthic Triangle and Reflection Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Circum-Orthic Triangle and Half-Altitude Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Circum-Orthic Triangle and Euler Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Circum-Orthic Triangle and Reflection Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Half-Altitude Triangle and Orthic Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Half-Altitude Triangle and Reflection Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Euler Triangle and Orthic Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Euler Triangle and Half-Altitude Triangle.

Nine-point Center = Isogonal Complement of the Perspector of the Euler Triangle and Reflection Triangle.

Nine-point Center = Isogonal Complement of the External Similitude Center of the Circumcircle and Nine-Point Circle.

Nine-point Center = Isotomic Conjugate of the Isogonal Conjugate of the Centroid of the Orthic Triangle.

Nine-point Center = Perspector of Triangle ABC and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Perspector of the Medial Triangle and Euler Triangle.

Nine-point Center = Perspector of the Cyclocevian Triangle of the Orthocenter and Euler Triangle.

Nine-point Center = Perspector of Triangle ABC and Anticomplementary Triangle of the Euler Triangle.

Nine-point Center = Perspector of the Orthic Triangle and Half-cevian Triangle of the Circumcenter.

Nine-point Center = Perspector of the Cevian Triangle of the Nine-Point Center and Anticevian Triangle of the Nine-Point Center.

Nine-point Center = Perspector of the Cevian Triangle of the Nine-Point Center and Circumcevian Triangle of the Nine-Point Center.

Nine-point Center = Perspector of the Cevian Triangle of the Nine-Point Center and Half-cevian Triangle of the Nine-Point Center.

Nine-point Center = Perspector of the Cevian Triangle of the Nine-Point Center and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Perspector of the Excentral Triangle and Feuerbach Triangle.

Nine-point Center = Perspector of the Anticevian Triangle of the Nine-Point Center and Circumcevian Triangle of the Nine-Point Center.

Nine-point Center = Perspector of the Anticevian Triangle of the Nine-Point Center and Half-cevian Triangle of the Nine-Point Center.

Nine-point Center = Perspector of the Anticevian Triangle of the Nine-Point Center and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Perspector of the Pedal Triangle of the Orthocenter and Half-cevian Triangle of the Circumcenter.

Nine-point Center = Perspector of the Pedal Triangle of the Nine-Point Center and Half-cevian Triangle of the Centroid.

Nine-point Center = Perspector of the Cyclocevian Triangle of the Centroid and Half-cevian Triangle of the Circumcenter.

Nine-point Center = Perspector of the Half-cevian Triangle of the Centroid and s-Reflection Triangle of the Nine-point Center.

Nine-point Center = Perspector of the Half-cevian Triangle of the Nine-Point Center and s-Reflection Triangle of the Circumcenter.

Nine-point Center = Internal Similitude Center of the Spieker Circle and Incircle of the Euler Triangle.

Nine-point Center = Internal Similitude Center of the Nine-Point Circle of the Medial Triangle and Nine-Point Circle of the Euler Triangle.

Nine-point Center = Internal Similitude Center of the Apollonius Circle of the Medial Triangle and Apollonius Circle of the Euler Triangle.

Nine-point Center = Internal Similitude Center of the Brocard Circle of the Medial Triangle and Brocard Circle of the Euler Triangle.

Nine-point Center = Internal Similitude Center of the Lemoine Circle of the Medial Triangle and Lemoine Circle of the Euler Triangle.

Nine-point Center = External Similitude Center of the Nine-Point Circle and Nine-Point Circle of the Fuhrmann Triangle.

Nine-point Center = External Similitude Center of the Circumcircle of the Orthic Triangle and Nine-Point Circle of the Fuhrmann Triangle.

The Nine-point Center lies on the Line defined by the Incenter and Feuerbach Point.

The Nine-point Center lies on the Line defined by the Incenter and Second Feuerbach Point.

The Nine-point Center lies on the Euler Line.

The Nine-point Center lies on the Line defined by the Centroid and Orthocenter.

The Nine-point Center lies on the Line defined by the Centroid and de Longchamps Point.

The Nine-point Center lies on the Line defined by the Centroid and Schiffler Point.

The Nine-point Center lies on the Line defined by the Centroid and Exeter Point.

The Nine-point Center lies on the Line defined by the Centroid and Far-out Point.

The Nine-point Center lies on the Line defined by the Centroid and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the Centroid and Skordev Point.

The Nine-point Center lies on the Line defined by the Circumcenter and Orthocenter.

The Nine-point Center lies on the Line defined by the Circumcenter and de Longchamps Point.

The Nine-point Center lies on the Line defined by the Circumcenter and Schiffler Point.

The Nine-point Center lies on the Line defined by the Circumcenter and Exeter Point.

The Nine-point Center lies on the Line defined by the Circumcenter and Far-out Point.

The Nine-point Center lies on the Line defined by the Circumcenter and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the Circumcenter and Skordev Point.

The Nine-point Center lies on the Line defined by the Orthocenter and de Longchamps Point.

The Nine-point Center lies on the Line defined by the Orthocenter and Schiffler Point.

The Nine-point Center lies on the Line defined by the Orthocenter and Exeter Point.

The Nine-point Center lies on the Line defined by the Orthocenter and Far-out Point.

The Nine-point Center lies on the Line defined by the Orthocenter and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the Orthocenter and Skordev Point.

The Nine-point Center lies on the Line defined by the Spieker Center and Center of the Apollonius Circle.

The Nine-point Center lies on the Line defined by the Feuerbach Point and Second Feuerbach Point.

The Nine-point Center lies on the Line defined by the First Fermat Point and Second Napoleon Point.

The Nine-point Center lies on the Line defined by the Second Fermat Point and First Napoleon Point.

The Nine-point Center lies on the Line defined by the de Longchamps Point and Schiffler Point.

The Nine-point Center lies on the Line defined by the de Longchamps Point and Exeter Point.

The Nine-point Center lies on the Line defined by the de Longchamps Point and Far-out Point.

The Nine-point Center lies on the Line defined by the de Longchamps Point and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the de Longchamps Point and Skordev Point.

The Nine-point Center lies on the Line defined by the Schiffler Point and Exeter Point.

The Nine-point Center lies on the Line defined by the Schiffler Point and Far-out Point.

The Nine-point Center lies on the Line defined by the Schiffler Point and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the Schiffler Point and Skordev Point.

The Nine-point Center lies on the Line defined by the Exeter Point and Far-out Point.

The Nine-point Center lies on the Line defined by the Exeter Point and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the Exeter Point and Skordev Point.

The Nine-point Center lies on the Line defined by the Far-out Point and Center of the Orthocentroidal circle.

The Nine-point Center lies on the Line defined by the Far-out Point and Skordev Point.

The Nine-point Center lies on the Line defined by the Center of the Orthocentroidal circle and Skordev Point.

The Nine-point Center lies on the Brocard Circle of the Medial Triangle.

The Nine-point Center lies on the Brocard Circle of the Orthic Triangle.

The Nine-point Center lies on the Brocard Circle of the Euler Triangle.

The Nine-point Center lies on the Brocard Circle of the Feuerbach Triangle.

The Nine-point Center lies on the Nine-Point Circle of the First Brocard Triangle.

The Nine-point Center lies on the Orthocentroidal Circle of the Medial Triangle of the Medial Triangle.

The Nine-point Center lies on the Orthocentroidal Circle of the Medial Triangle of the Orthic Triangle.

The Nine-point Center lies on the Orthocentroidal Circle of the Medial Triangle of the Euler Triangle.

The Nine-point Center lies on the Orthocentroidal Circle of the Medial Triangle of the Feuerbach Triangle.

The Nine-point Center lies on the Brocard Circle of the Medial Triangle of the Fuhrmann Triangle.

The Nine-point Center lies on the Brocard Circle of the Orthic Triangle of the Fuhrmann Triangle.

The Nine-point Center lies on the Circumcircle of the Medial Triangle of the First Brocard Triangle.

The Nine-point Center lies on the Circumcircle of the Orthic Triangle of the First Brocard Triangle.

The Nine-point Center lies on the Bevan Circle of the Tangential Triangle of the Medial Triangle.

The Nine-point Center lies on the Bevan Circle of the Tangential Triangle of the Euler Triangle.

The Nine-point Center lies on the Circumcircle of the First Brocard Triangle of the Medial Triangle.

The Nine-point Center lies on the Circumcircle of the Second Brocard Triangle of the Medial Triangle.

The Nine-point Center lies on the Circumcircle of the First Brocard Triangle of the Orthic Triangle.

The Nine-point Center lies on the Circumcircle of the Second Brocard Triangle of the Orthic Triangle.

The Nine-point Center lies on the Circumcircle of the First Brocard Triangle of the Euler Triangle.

The Nine-point Center lies on the Circumcircle of the Second Brocard Triangle of the Euler Triangle.

The Nine-point Center lies on the Circumcircle of the First Brocard Triangle of the Feuerbach Triangle.

The Nine-point Center lies on the Circumcircle of the Second Brocard Triangle of the Feuerbach Triangle.

The Nine-point Center lies on the Brocard Circle of the Euler Triangle of the Fuhrmann Triangle.

The Nine-point Center lies on the Brocard Circle of the Feuerbach Triangle of the Fuhrmann Triangle.

The Nine-point Center lies on the Nine-Point Circle of the First Brocard Triangle of the Fuhrmann Triangle.

The Nine-point Center lies on the Circumcircle of the Euler Triangle of the First Brocard Triangle.

The Nine-point Center lies on the Circumcircle of the Feuerbach Triangle of the First Brocard Triangle.

The Nine-point Center lies on the Inverse Circle of the Brocard Circle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Brocard Circle in the Circumcircle of the Fourth Brocard Triangle.

The Nine-point Center lies on the Inverse circle of the Orthocentroidal Circle of the Medial Triangle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Bevan Circle of the Tangential Triangle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Brocard Circle of the Circum-Incentral Triangle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Brocard Circle of the Circum-Medial Triangle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Brocard Circle of the Circum-Orthic Triangle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Circumcircle of the First Brocard Triangle in the Orthocentroidal Circle.

The Nine-point Center lies on the Inverse circle of the Circumcircle of the Second Brocard Triangle in the Orthocentroidal Circle.