| r2002 |
isogonal
points |
| r2003 |
isogonal
points |
| r2004 |
circumcenter,
ninecenter,
cevian
quotient,
radical center |
| r2010 |
circumcenter |
| r2014 |
orthocenter,
orthologic
triangles, point
X(84) |
| r2022 |
Nagel point,
ninecircle |
| r2023 |
circumcenter,
ninecenter,
altitude
feet,
altitudes,
ninecircle,
point
X(52) |
| r2027 |
circumcenter,
ninecircle,
incentric
triangle,
point X(100),
isogonal
of the infinite point,
radical center |
| r2032 |
excenters,
orthologic
triangles |
| r2033 |
circumcenter,
excentral
triangle, pedal triangle, orthologic
triangles, Euler line, Feuerbach
hyperbola |
| r2039 |
Feuerbach
point, point X(79), altitude
feet, intouch triangle, concyclic
points, radical center |
| r2040 |
circumconic,
incentric
triangle, antipedal triangle,
Spieker
point, orthologic triangles |
| r2058 |
circumcenter |
| r2059 |
excenters |
| r2061 |
ninecenter |
