d	circumtangential triangle
r257	antimedial triangle, Stammler circles, circumtangential triangle, homothetic triangles
r757	perspective
r758	perspective, excentral triangle
r759	perspective, circumtangential triangle
r760	perspective, isogonal points
r761	perspective, excentral triangle, isogonal points
r762	circumtangential triangle, circumcircle, isotomic points, Steiner circumellipse, third Brocard point, Steiner point, homothetic triangles
r763	perspective, incenter
r764	perspective, orthocenter
r765	perspective, centroid, circumcenter
r766	perspective, incenter
r938
r939	Euler line
r940	ninecenter
r1236	tripolar, perspective
r1237	tripolar, perspective
r1238	tripolar, perspective, incentric triangle
c49	homothetic triangles
r1386	Steiner deltoid, homothetic triangles