r1769	circumcircle, tripole
r1770	circumconic, perspector, circumcircle, tripole
r1773	Jerabek hyperbola
r1779	centroid, symmedian point, perspective, isotomic points, point X(262)
r1786	circumcircle, orthocenter, medial triangle
r1787	circumcircle, orthocenter, symmedian point, point X(24), tripolar, cevian product
r1788	circumcenter, perspective
r1793	Euler line, orthocenter, ninecircle
r1802	point X(100), isogonal points, incircle
r1804	perspective
r1806	pedal triangle, isogonal points, perspective
r1816	cevian triangle, perspective, cyclocevian points
r1843	pedal triangle
r1844	pedal triangle
r1850	Euler line, perspective
r1855	incenter, circumcircle, inverse points
r1856	incenter, circumcircle, excenters
r1884	circumcircle, isogonal points
r1885	circumcircle, circumcenter
r1886	tangential triangle, perspective, centroid, Gob point
r1902	symmedian point, orthocenter, incentric triangle
r1916	orthocenter, circumcenter, isogonal points
r1931	pedal triangle, isogonal of the infinite point
r1941	incenter, De Longchamps point, circumcircle

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