| r1889 |
circumcircle,
ninecircle |
| r1893 |
radical center |
| r1901 |
Euler line,
radical
center |
| r1908 |
radical center |
| r1913 |
orthocenter,
ninecenter,
Euler
line,
ninecircle |
| r1916 |
orthocenter,
isogonal
points, circumcevian triangle |
| r1922 |
ninecenter,
medial
triangle,
excentral triangle, Bevan
point |
| r1924 |
ninecenter,
tangential
triangle,
Euler
line,
homothetic triangles |
| r1926 |
orthocenter,
tangential
triangle,
orthologic
triangles, point X(265) |
| r1929 |
incenter,
excenters |
| r1932 |
incenter,
Kosnita
point |
| r1933 |
excenters,
Kosnita
point |
| r1938 |
point X(52),
medial
triangle, orthic triangle, point
X(115) |
| r1942 |
symmedian
point |
| r1944 |
incenter,
ninecenter |
| r1954 |
ninecenter,
altitude
feet,
orthologic triangles,
Euler
line,
orthocenter,
centroid |
| r1957 |
ninecenter,
Euler
line |
| r1960 |
excenters,
ninecenter,
Euler
line |
| r1961 |
incenter,
excenters,
excentral
triangle, Tixier point |
| r1962 |
incenter,
intouch
triangle, incircle,
Tixier
point |
| r1963 |
orthocenter,
isogonal
points, medial
triangle, pedal triangle, pedal
circle, Tixier point |
| r1969 |
isogonal
points |
| r1970 |
isogonal
points |
| r1971 |
orthocenter,
isogonal
points, tripolar, point
X(186), point X(275) |
| r1973 |
De
Longchamps point, altitude feet,
orthocentroidal
circle,
homothetic triangles, inverse points |
