| r1955 | incenter, excenters, excircles, homothetic triangles, radical center |
| r1956 | excenters, excircles, point X(84), homothetic triangles |
| r1958 | incenter, ninecenter |
| r1959 | excenters, ninecenter |
| r1967 | incenter, Kosnita point |
| r1990 | orthocenter, circumcenter, antigonal points, point X(110), point X(265) |
| r2025 | orthocenter, MacBeath conic |
| r2056 | altitude feet, orthocenter, isogonal points, Euler line, ninecircle |
| r2071 | isogonal points, perspective, complement |
|
|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 |