r1743	Gergonne point, intouch triangle, circumconic
r1756	orthocenter
r1760
r1763	point X(80), point X(100), complement
r1772	circumcenter
r1775	intouch triangle, perspective, homothetic triangles
r1790	perspective, cevian triangle, Schiffler point
r1795	circumcenter
r1801	centroid, excenters, circumcenter, extangential triangle, parallelogic triangles
r1805	point X(57), circumcircle, Mannheim circles
r1808	Kosnita point, intouch triangle
r1810	excenters, Gergonne point, De Longchamps point
r1817	intouch triangle, incircle, orthologic triangles
r1833	isogonal points, point X(56), circumcircle, Mannheim circles, Spieker point
r1834	circumcircle, Mannheim circles, inverse points
r1851	centroid, extouch triangle
r1855	circumcevian triangle, circumcircle, inverse points
r1856	circumcevian triangle, circumcircle, excenters
r1875	ninecenter, Euler line, concyclic points
r1878	excircles, orthic triangle
r1883	intouch triangle
r1907	ninecenter, Euler line, incentric triangle, pedal triangle, isogonal points
r1909	orthocenter, altitudes, point X(265)
r1918	isogonal points
r1920	isogonal points, incentric triangle

	1	2	3	4	5	6	7	8	9	10
	11	12