| r1674 |
Feuerbach
hyperbola,
ninecircle |
| r1689 |
symmedian
point,
Clawson point, Feuerbach
point, point X(33), concyclic points |
| r1690 |
symmedian
point,
point X(37), point
X(55), concyclic points |
| r1723 |
extouch
triangle, concyclic points |
| r1735 |
circumcircle,
excircles,
perspective |
| r1736 |
point X(65),
point
X(80), isogonal points, concyclic
points |
| r1837 |
|
| r1869 |
ninecircle,
tangent
circles |
| r1895 |
ninecircle |
| r2011 |
intouch
triangle, antimedial triangle,
Euler
line,
incircle,
point
X(80) |
| r2039 |
incenter,
point
X(79), altitude feet, intouch
triangle, concyclic points, radical center |
