| r1565 |
orthocenter,
altitudes,
point
X(24) |
| r1600 |
orthocenter,
ninecircle,
altitudes |
| r1611 |
orthocenter,
circumcenter,
ninecenter,
isogonal points |
| r1612 |
Fermat
triangles |
| r1619 |
ninecenter |
| r1620 |
Euler line,
point
X(125) |
| r1625 |
point X(110),
point
X(265), circumconic |
| r1631 |
Gob point,
circumcircle,
tangent
circles |
| r1649 |
circumcenter,
altitudes |
| r1658 |
circumcircle,
centroid |
| r1671 |
orthocenter,
Euler
line, circumcevian triangle |
| r1672 |
orthocenter,
Euler
line, circumcevian triangle,
point
X(186) |
| r1673 |
orthocenter,
Euler
line |
| r1681 |
centroid,
orthocenter,
cevian
circle, medians, point
X(468) |
| r1683 |
centroid,
orthocenter,
cevian
circle, altitudes, point
X(403) |
| r1725 |
incenter,
Soddy
points |
