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| c61 | Equicenter of two inscribed triangles |
| c62 | Areal center of two inscribed triangles |
| c63 | Family of similar inscribed triangles having as equicenter a given point E |
| c64 | Family of inscribed triangles having as equicenter and areal center two given points E, S |
| c65 | Points with equilateral cevian triangle |
| c66 | Thebault circles |
| c67 | Triangle knowing the vertex A and the Brocard points V, W |
| c68 | Triangle knowing the midpoint D of BC, the foot B' of the B-altitude and the midpoint Z between C and the orthocenter |
| c69 | Point P having pedal triangle with respect to ABC similar to a given A'B'C' |
| c70 | Point having cevian triangle similar to the pedal triangle of a point M |
| c71 | Point having anticevian triangle similar to the pedal triangle of a point M |
| c72 | Triangle knowing the lines rb, rc of the sides and the Euler line re |
| c73 | Triangle knowing the lines rb, rc of the sides and the GergonTrianne point Ge |
| c74 | Point X in BC such as the incircles of ABX and ACX have the same radius |
| c75 | Triangles with concurrent A-altitude, B-median and C-bisector |
| c76 | Point having circumcevian triangle directly similar to a given A'B'C' |