Extend the symmedians of a triangle to meet the circumcircle at , , . Then the symmedian point of is also the symmedian point of . The triangles and are cosymmedian triangles, and have the same Brocard circle, second Brocard triangle, Brocard angle, Brocard points, and circumcircle.
Cosymmedian Triangles
See also
Brocard Angle, Brocard Circle, Brocard Points, Brocard Triangles, Circumcircle, Comedian Triangles, Symmedian, Symmedian PointExplore with Wolfram|Alpha
References
Lachlan, R. An Elementary Treatise on Modern Pure Geometry. London: Macmillian, p. 63, 1893.Referenced on Wolfram|Alpha
Cosymmedian TrianglesCite this as:
Weisstein, Eric W. "Cosymmedian Triangles." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/CosymmedianTriangles.html