| r481 |
Mittenpunkt,
symmedian
point |
| r482 |
isogonal
points,
orthocenter,
cevian
quotient |
| r499 |
circumcircle,
homothetic
triangles |
| r541 |
extouch
triangle, symmedian point,
point
X(185) |
| r592 |
orthocenter,
symmedian
point |
| r600 |
Brocard
line, similar triangles |
| r647 |
orthopole,
medial
triangle, point X(389) |
| r648 |
medial
triangle, Steiner point, Simson
line |
| r750 |
perspective,
orthocenter,
point
X(24) |
| r772 |
point X(186) |
| r780 |
perspective,
excentral
triangle |
| r787 |
altitudes,
ninecircle,
De
Longchamps point |
| r799 |
medial
triangle, circumcenter, symmedian
lines |
| r832 |
Jerabek
hyperbola, perspective,
homothetic
triangles, similar triangles |
| r839 |
orthocenter,
point
X(389), homothetic triangles |
| r849 |
Euler line,
point
X(442), orthiac
triangles |
| r867 |
intouch
triangle, incircle,
point
X(55),
homothetic triangles |
| r868 |
intouch
triangle, Simson line |
| r870 |
cevian
quotient,
orthocenter,
perspective |
| r907 |
intouch
triangle, perspective,
Gob
point |
| r979 |
orthocenter,
circumcenter,
centroid,
circumcevian
triangle, medial triangle, homothetic
triangles, harmonic points |
