r870 |
orthic
triangle, orthocenter,
perspective |
r890 |
tripolar,
isogonal
points,
circumcircle,
incircle,
point
X(55), Mittenpunkt |
r932 |
intangential
triangle, extouch triangle, perspective,
Nagel
point, Mittenpunkt |
r980 |
|
r1053 |
cevian
triangle, centroid,
anticomplement,
anticevian
triangle |
d |
point X(237) |
r1149 |
point X(523),
incenter,
Feuerbach
point |
r1150 |
point X(523),
Steiner
point, centroid |
r1151 |
point X(523),
orthocenter,
point
X(125) |
r1152 |
point X(523),
ninecenter,
point
X(110) |
r1183 |
altitude
feet,
circumcenter,
ninecenter,
centroid |
r1293 |
|
r1304 |
tripole,
cevian
product |
r1405 |
Neuberg
triangle,
antimedial triangle,
orthologic
triangles, centroid,
circumcenter,
symmedian
point |
r1414 |
altitudes,
orthocenter |
r1458 |
orthocenter,
circumcenter,
point
X(155) |
r1466 |
cevian
triangle, centroid,
symmedian
point |
r1475 |
circumconic |
r1514 |
circumconic |
r1550 |
incenter,
excenters |
r1573 |
isogonal
points, complement,
radical
center |
r1716 |
circumcenter,
ninecenter,
orthic
triangle,
isogonal points |
r1824 |
isogonal
points |
r1825 |
isogonal
points, isotomic points |
r1937 |
ninecenter,
orthocenter,
point
X(52) |