| r1679 |
centroid,
cevian
circle, medians |
| r1680 |
centroid,
cevian
circle, medians, point
X(858) |
| r1681 |
centroid,
cevian
circle, medians, point
X(468), altitude feet |
| r1682 |
centroid,
cevian
circle, altitudes |
| r1683 |
centroid,
cevian
circle, altitudes, altitude
feet, point X(403) |
| r1684 |
centroid,
cevian
circle, altitudes, Euler
line |
| r1699 |
incircle,
tangent
circles |
| r1701 |
circumcenter,
ninecenter,
orthic
triangle,
point X(403), homothetic triangles |
| r1702 |
circumcenter,
circumcevian
triangle,
homothetic triangles |
| r1703 |
circumcenter,
circumcevian
triangle,
Euler
line,
homothetic triangles |
| r1705 |
circumcenter,
ninecenter,
orthic
triangle,
homothetic triangles |
| r1706 |
circumcenter,
circumcevian
triangle,
Euler
line,
homothetic triangles |
| r1707 |
circumcenter,
circumcevian
triangle,
Euler
line,
homothetic triangles |
| r1709 |
circumcenter,
ninecenter,
orthic
triangle |
| r1710 |
circumcenter,
circumcevian
triangle |
| r1711 |
circumcenter,
circumcevian
triangle |
| r1713 |
circumcenter,
altitudes,
point
X(110) |
| r1728 |
centroid,
De
Longchamps point, pedal triangle,
Brocard
line |
| r1740 |
orthic
triangle,
pedal triangle, perspective,
Gergonne
point |
| r1748 |
radical center |
| r1750 |
De
Longchamps point, altitude feet, circumcenter,
retrocenter,
symmedian
point, circumcevian triangle,
perspective |
| r1755 |
circumcenter |
| r1756 |
incenter |
| r1780 |
orthic
triangle, cevian triangle, point
X(275) |
| r1782 |
orthic
triangle, homothetic triangles |
