| r1021 |
orthocenter,
orthologic
triangles, isogonal of the infinite
point |
| c21 |
perspective |
| c27 |
circumcenter |
| r1127 |
point X(671),
Droussent
point, perspective |
| r1264 |
orthologic
triangles, point
X(64) |
| r1286 |
perspective,
centroid,
symmedian
point,
Johnson triangle |
| r1333 |
circumcenter,
similar
triangles |
| r1381 |
Steiner
deltoid |
| r1414 |
orthocenter,
cevian
quotient |
| r1417 |
|
| r1418 |
Euler line |
| r1468 |
orthocenter,
circumcenter,
Nagel
point |
| c68 |
orthocenter |
| c75 |
medians |
| r1547 |
Vecten
points, cevian product,
ninecenter,
symmedian
point |
| r1565 |
orthocenter,
altitude
feet, point X(24) |
| r1577 |
orthocenter,
circumcenter |
| r1578 |
orthologic
triangles, De
Longchamps point, point X(74) |
| r1579 |
Prasolov
point |
| r1600 |
orthocenter,
ninecircle,
altitude
feet |
| r1649 |
circumcenter,
altitude
feet |
| r1657 |
circumcircle,
De
Longchamps point |
| r1659 |
circumcircle,
circumcenter,
Euler
line |
| r1662 |
centroid,
orthocenter,
excenters,
Euler
line |
