r1238	Morley triangle, tripolar, incentric triangle
r1259	circumcircle
r1260	circumcircle, altitude feet, orthic triangle, homothetic triangles
r1285	orthologic triangles, Fuhrmann triangle, orthic triangle
r1286	centroid, altitudes, symmedian point, Johnson triangle
r1287	isotomic points
r1294	Lemoine line, circumcevian triangle
r1300	orthologic triangles
c51	circumcircle, orthologic triangles
c52	orthologic triangles
r1325	circumcircle, incenter, point X(65)
r1330	circumcircle, point X(74)
r1331	desmic structure, isogonal points, isotomic points
r1367	circumcevian triangle, incenter, point X(100)
r1368	circumcenter, similar triangles
r1390	Fermat triangles, isodynamic points
r1404	Neuberg triangle, antimedial triangle, medial triangle, Wallace hyperbola
r1406	Neuberg triangle, antimedial triangle, point X(262)
r1474	incenter, circumcenter
r1478
r1481	circumcenter, Euler line, orthic triangle
r1483
r1494	cevian triangle, side triangle
r1497
r1507	circumcircle, incenter

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