| r548 |
point X(12),
medial
triangle, incircle,
homothetic triangles |
| r549 |
Kiepert
hyperbola,
incenter |
| r550 |
incircle,
circumconic,
cevian
triangle |
| r561 |
point X(55),
incircle,
cevian
triangle, Weill point |
| r601 |
perspective,
point
X(173) |
| r636 |
Yff point,
incenter,
incircle,
homothetic
triangles |
| r650 |
medial
triangle, Steiner inellipse, side
triangle, perspective |
| r651 |
medial
triangle, Feuerbach point, side
triangle, perspective |
| r653 |
Feuerbach
point,
ninecenter |
| r668 |
perspective,
point
X(57), incircle,
tangent circles |
| r673 |
ninecircle,
perspective,
Feuerbach
point |
| r694 |
Yff central
triangle, perspective,
Yff
point |
| r719 |
perspective,
excircles |
| r751 |
perspective,
point
X(57), Gergonne point |
| r798 |
medial
triangle |
| r867 |
orthic
triangle,
incircle,
point
X(55),
homothetic triangles |
| r868 |
orthic
triangle,
Simson line |
| r898 |
perspective,
altitudes,
excircles |
| r907 |
orthic
triangle,
perspective,
Gob
point |
| r917 |
excenters,
altitudes |
| r918 |
pedal triangle,
excenters,
Euler
line,
circumcenter |
| r919 |
pedal triangle,
excenters,
Brocard
line,
De
Longchamps point |
| r933 |
intangential
triangle, perspective,
incenter |
| r935 |
circumcenter,
incenter |
| r950 |
tangential
triangle, Euler
line, circumcenter |
