| r1545 |
|
| r1586 |
Simson
line, medial triangle, orthic
triangle, point X(115) |
| r1588 |
circumcircle,
Simson
line, Euler line, circumcevian
triangle,
point
X(468) |
| r1589 |
Simson
line, medial triangle |
| r1598 |
orthocenter,
circumcenter,
incentric
triangle |
| r1600 |
orthocenter,
altitudes,
altitude
feet |
| r1674 |
Feuerbach
point, Feuerbach hyperbola |
| r1675 |
Kiepert
hyperbola, orthocenter, point
X(115) |
| r1677 |
isogonal
points, circumcircle,
inverse
points |
| r1726 |
pedal circle,
isogonal
points, circumconic |
| r1727 |
pedal circle,
Euler
line,
point X(125) |
| r1739 |
circumcenter,
ninecenter,
perspector,
point
X(264), MacBeath
conic, orthocentroidal circle |
| r1754 |
perspector,
Lemoine
line |
| r1784 |
circumcircle,
circumcenter,
altitudes |
| r1793 |
Euler line,
circumcevian
triangle, orthocenter |
| r1799 |
orthocenter,
inverse
points, similar triangles |
| r1811 |
pedal triangle,
medial
triangle, side triangle,
perspective,
pedal
circle |
| r1839 |
circumcircle,
circumcenter,
tangential
triangle |
| r1852 |
ninecenter |
| r1853 |
centroid,
Spieker
point |
| r1859 |
excircles |
| r1860 |
excircles |
| r1867 |
circumcircle,
perspective,
Kosnita
point |
| r1868 |
orthocenter,
Mittenpunkt,
tangent
circles |
| r1869 |
Feuerbach
point, tangent circles |
