r255	Simson line, circumtangential triangle
r615	circumcircle, orthopole, Simson line
r617	inconic, anticomplement
r621	orthopole, orthocenter, isogonal points, circumconic
r771	circumtangential triangle, circumcircle, anticomplement
r1217	inconic, perspector, retrocenter
r1377	circumtangential triangle, De Longchamps point, homothetic triangles
r1378	circumtangential triangle, ninecircle, centroid, homothetic triangles
r1379	ninecircle, ninecenter, homothetic triangles
r1380	ninecircle
r1381	altitudes
r1382	ninecenter, circumcircle
r1383	orthocenter
r1384	ninecircle, altitude feet
r1385	ninecircle, point X(125), point X(74),Simson line
r1386	Morley triangle, homothetic triangles
r1387	ninecircle, ninecenter, homothetic triangles
r1388	ninecircle, Stammler circles, homothetic triangles
r1894	circumcircle, Simson line, medial triangle, radical center