r1532
r1533	Kiepert hyperbola, medial triangle, orthic triangle
r1537	cevian triangle, pedal triangle, orthologic triangles
r1556	pedal triangle, orthocenter, similar triangles
r1557	pedal triangle, Euler line, pedal circle
r1567	pedal triangle, circumcenter
r1568	circumcenter
r1569	pedal triangle, circumcenter
r1570	circumcevian triangle, point X(24), circumcenter, orthocenter, De Longchamps point
r1573	cevian quotient, complement, radical center
r1596	incenter, incentric triangle
r1597	orthocenter, circumcenter, circumcevian triangle, Nagel point, tangential triangle
r1611	orthocenter, circumcenter, ninecenter, altitude feet
r1615	Euler line, Beltrami points
r1616	Beltrami points, Parry point, point X(74)
r1633	pedal triangle, orthologic triangles, pedal circle
r1636	circumcevian triangle, circumcenter
r1642	pedal triangle, circumcenter, homothetic triangles
r1652	circumcevian triangle, orthocenter, anticomplement
r1677	ninecircle, circumcircle, inverse points
r1694	symmedian point, centroid, point X(125)
r1716	circumcenter, ninecenter, orthic triangle, cevian quotient
r1720	circumcircle, perspective
r1726	ninecircle, pedal circle, circumconic
r1730	ninecenter, circumconic, medial triangle

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