POINT X(442)
r732
excenters
,
Euler line
r849
Euler line, orthic triangle
,
orthiac triangles
r986
excircles,
Feuerbach point
r1096
point X(12),
Euler line
,
Spieker point
r1099
excenters
,
ninecircle
r1904
excircles,
altimedial triangles,
altitude feet,
radical center