r84	point X(125), Euler line
r103	point X(115), Brocard line
r176	inconic
r208	orthocenter, ninecircle, pedal triangle
r240	pedal circle, circumcenter, isogonal points
r262	ninecircle, circumcenter
r263	circumcircle, Simson line
r313	Feuerbach point, incenter, circumcenter
r483	isogonal points, circumcenter, circumcircle, cevian triangle
r484	circumcircle, inverse points
r497	isogonal points, circumcircle, inverse points
r563	circumcenter, isogonal points
r571	Bevan point, Spieker point, incenter, anticomplement, circumconic
r615	circumcircle, Simson line, Steiner deltoid
r616	circumcircle, orthocenter, altitude feet
r618	isogonal lines
r619	circumcircle, circumcenter, Prasolov point
r620	inconic, circumcenter, retrocenter, De Longchamps point, perspector
r621	orthocenter, isogonal points, circumconic, Steiner deltoid
r647	medial triangle, orthic triangle, point X(389)
r654	orthocenter, circumcenter
r844
r906	orthocenter, symmedian point
r1013	pedal circle
c40

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