r25	Fermat points, equilateral triangle
r338	circumcenter, perspective
r381	pedal triangle, isogonal points, homothetic triangles
r441	centroid, Steiner inellipse
r494	Vecten squares, centroid, point X(376), homothetic triangles
r729	point X(376), centroid
r1107	cevian triangle, anticevian triangle, orthologic triangles
r1221	circumcenter, circumcevian triangle, perspective
r1460	isogonal points
r1467	isogonal points, orthologic triangles
r1667	centroid, Fermat points
r1764	antigonal points, medial triangle, circumcenter, Parry reflection point, perspective, homothetic triangles
r1876	ninecenter, circumcenter, complement
r1964	isogonal points
r2040	incenter, circumconic, incentric triangle, Spieker point, orthologic triangles
r2050	orthologic triangles