r128	point X(125), orthic triangle
r446	circumcircle, circumconic, point X(190), Mittenpunkt
r522	Feuerbach hyperbola, Jerabek hyperbola, excentral triangle
r652	excenters, Bevan point, Feuerbach point
r721	cevian quotient, point X(190), Steiner point
r879
r1351	Simson line, circumcenter, incenter
r1352	point X(104)
r1367	circumcevian triangle, incenter, perspective
r1429	circumcevian triangle, intouch triangle, incenter, Feuerbach point
r1434	Feuerbach point, centroid, Nagel point, circumcenter
r1471	orthologic triangles, circumcircle, incenter, circumcenter
r1691	circumcircle, point X(190), Steiner circumellipse
r1714
r1763	incenter, point X(80), complement
r1802	isogonal points, circumcevian triangle, incircle
r1947	incenter, Euler line, excenters, point X(80)
r2027	circumcenter, incenter, ninecircle, incentric triangle, isogonal of the infinite point, radical center