r604 |
incenter,
Fuhrmann
circle, inverse points |
r605 |
orthologic
triangles, Fuhrmann triangle |
r606 |
excenters |
r767 |
isogonal
points, incenter,
circumcircle,
inverse
points |
r768 |
Euler line,
Evans
perspector |
r769 |
Evans perspector,
incenter,
cevian
quotient |
r1039 |
Feuerbach
point, pedal triangle,
excenters,
isogonal
points |
r1118 |
circumcenter,
cevian
triangle, Gergonne point, perspective,
incenter |
r1736 |
Feuerbach
point, point X(65), isogonal
points, concyclic points |
r1761 |
excircles |
r1763 |
incenter,
point
X(100), complement |
r1905 |
excenters,
altimedial
triangles, altitude feet |
r1947 |
incenter,
Euler
line,
excenters,
point
X(100) |
r2011 |
intouch
triangle, antimedial triangle,
Euler
line,
incircle,
Feuerbach
point |