| r671 |
circumcenter,
perspector,
isotomic
points |
| r672 |
ninecircle,
orthocenter |
| r896 |
circumcircle,
ninecircle |
| r943 |
|
| r1022 |
circumcircle,
orthocenter |
| r1023 |
orthocenter,
isogonal
points,
isotomic points,
Tarry
point, point X(125) |
| r1034 |
orthocenter |
| r1070 |
circumcircle |
| r1336 |
circumcircle,
poristic
triangles,
centroid,
orthocenter,
circumcenter |
| r1528 |
Euler line,
inconic |
