r141 |
tangential
triangle, perspective,
intangential
triangle, incenter |
r142 |
point X(12),
Gergonne
point, circumcenter,
Feuerbach
point, incenter, orthocenter,
centroid,
Schiffler
point |
r155 |
Mannheim
circles, perspective |
r150 |
circumcircle,
incircle,
tangent
circles, perspective |
r193 |
Schröder
point, Weill point,Bevan-Schröder
point,
Bevan
point, poristic triangles,
point
X(65), point X(55) |
d |
Bevan-Schröder point |
r516 |
Jenkins
circles, excircles,
isotomic
points |
r547 |
intouch
triangle, incircle,
homothetic
triangles |
r1156 |
point X(55),
inconic,
perspector,
Feuerbach
point, isogonal points |
r1327 |
circumcircle,
incenter |
r1440 |
circumcevian
triangle,
isogonal
points, incenter,
homothetic triangles |
r1541 |
incircle |
r1638 |
circumcevian
triangle,
perspective,
incenter,
circumcenter |
r1752 |
altitude
feet, radical center |
r1833 |
isogonal
points, incenter,
circumcircle,
Mannheim
circles, Spieker point |