| r1682 |
centroid,
orthocenter,
cevian
circle |
| r1683 |
centroid,
orthocenter,
cevian
circle, altitude feet, point
X(403) |
| r1684 |
centroid,
orthocenter,
cevian
circle, Euler line |
| r1713 |
orthocenter,
circumcenter,
point
X(110) |
| r1741 |
circumcircle,
De
Longchamps point |
| r1742 |
circumcircle,
Euler
line,
circumcenter |
| r1765 |
point X(84) |
| r1784 |
circumcircle,
circumcenter,
ninecircle |
| r1785 |
circumcircle,
orthocenter,
isogonal
points, points X(1113)-X(1114) |
| r1807 |
circumcircle,
point
X(64),
ninecenter,
complement,
concyclic
points |
| r1820 |
Euler line,
parallelogic
triangles |
| r1862 |
ninecenter,
point
X(265) |
| r1866 |
ninecenter,
orthic
triangle,
circumcenter,
orthocenter,
similar
triangles |
| r1890 |
orthic
triangle, ninecenter |
| r1909 |
orthocenter,
incenter,
point
X(265) |
| r1910 |
orthocenter,
ninecenter,
Euler
line |
| r1923 |
ninecenter,
medial
triangle,
orthologic triangles,point
X(64) |
| r2020 |
circumcenter,
Euler
line |
| r2021 |
circumcenter,
Euler
line, complement,
altitude
feet, point X(74) |
| r2023 |
circumcenter,
incenter,
ninecenter,
altitude
feet,
ninecircle,
point
X(52) |
| r2024 |
altitude
feet,
ninecircle,
Gob
point |
| r2054 |
orthocenter,
isogonal
points, Euler
line, homothetic triangles |
| r2080 |
altitude
feet |
