| r447 |
antimedial
triangle, circumcircle,
orthocenter,
Brocard
line |
| r450 |
circumcircle,
circumconic,
orthocenter,
isogonal
points,
isogonal of the infinite
point |
| r451 |
perspective,
Jerabek
hyperbola |
| r452 |
perspective,
Kosnita
point |
| r470 |
Vecten
points, Vecten squares |
| r472 |
incenter,
orthocenter,
ninecenter |
| r483 |
isogonal
points, circumcircle,
cevian
triangle, orthopole |
| r493 |
Vecten
squares, symmedian point, homothetic
triangles |
| r495 |
Vecten
squares, symmedian point,
Euler
line, homothetic triangles |
| r502 |
circumcircle,
incenter,
excenters,
orthocenter,
point
X(84) |
| r518 |
isogonal
of the infinite point, isogonal points,
circumcevian
triangle |
| r519 |
isogonal
of the infinite point, isogonal points,
circumcevian
triangle |
| r529 |
symmedian
lines,
Kosnita point |
| r551 |
orthocenter,
symmedian
point,
Nagel point,
tangential
triangle, point X(64) |
| r562 |
centroid |
| r563 |
isogonal
points, orthopole |
| r569 |
tangential
triangle |
| r586 |
altitude
feet,
orthocenter |
| r588 |
ninecenter |
| r591 |
point X(403),
point
X(125), ninecircle,
concyclic points |
| r595 |
excenters,
Bevan
point, De Longchamps point, point
X(84), isogonal points,
desmic
structure |
| d |
point X(650) |
| r619 |
circumcircle,
orthopole,
Prasolov
point |
