| r992 |
cevian
triangle, centroid,
incenter,
orthocenter,
symmedian
point,
Nagel point,
Mittenpunkt |
| r1040 |
orthocentroidal
circle, incenter,
symmedian
point, Spieker point,
Nagel
point,
Feuerbach point, Brocard
points,
Fermat points,
Napoleon
points |
| r1075 |
cevian
triangle, excenters |
| r1079 |
cevian
triangle, circumcircle,
centroid,
incenter,
circumcenter,
tangent
circles |
| r1118 |
circumcenter,
cevian
triangle, point X(80), perspective,
incenter |
| r1157 |
Nagel point,
isotomic
points,
Feuerbach hyperbola |
| r1158 |
Nagel point,
isotomic
points,
Feuerbach hyperbola, Steiner
circumellipse |
| r1171 |
centroid,
circumconic,
complement,
point
X(190) |
| r1225 |
Feuerbach
hyperbola |
| r1226 |
Euler line,
Mittenpunkt |
| r1273 |
point X(75),
incenter,
Mittenpunkt |
| r1288 |
Soddy line,
intouch
triangle, incircle |
| c73 |
|
| r1606 |
Feuerbach
point, concyclic points |
| r1627 |
incenter,
intouch
triangle, concyclic points |
| r1628 |
incenter,
intouch
triangle, concyclic points |
| r1653 |
similar triangles |
| r1654 |
perspective,
centroid |
| r1740 |
orthic
triangle,
pedal triangle, perspective,
orthocenter |
| r1743 |
incenter,
intouch
triangle, circumconic |
| r1810 |
incenter,
excenters,
De Longchamps point |
