| r1146 |
Exeter
point, De Longchamps line |
| r1153 |
incircle,
Brocard
circle, point X(647), radical center |
| r1181 |
altitude
feet,
circumcenter,
ninecircle,
tangent
circles |
| r1259 |
perspective |
| r1260 |
perspective,
altitude
feet, orthic triangle, homothetic
triangles |
| r1265 |
homothetic triangles, tangent
circles |
| r1266 |
symmedian
point, Brocard line, tangent circles |
| r1278 |
isogonal
points, circumcenter |
| c51 |
perspective,
orthologic
triangles |
| c56 |
circumconic |
| r1302 |
isogonal
lines, Brocard line |
| r1314 |
circumconic,
perspector,
point
X(184) |
| r1325 |
incenter,
perspective,
point
X(65) |
| r1326 |
incenter,
incircle |
| r1327 |
incenter,
point
X(56) |
| r1328 |
point X(74) |
| r1329 |
point X(110) |
| r1330 |
point X(74),
perspective |
| r1336 |
poristic
triangles,
MacBeath
conic, centroid,
orthocenter,
circumcenter |
| r1339 |
circumcenter,
cevian
triangle, antimedial triangle, homothetic
triangles |
| r1348 |
pedal triangle,
areal
center, Simson line, similar triangles |
| r1363 |
incentric
triangle |
| r1382 |
Steiner
deltoid, ninecenter |
| r1389 |
orthopole,
retrocenter |
