Associated Triangles
CircularTriangle
The three circular triangles A^'B^'C^', AB^'C^', A^'BC^', and A^'B^'C obtained by extending the arcs of a circular triangle ABC into complete circles.
See also
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References
Lachlan, R. An Elementary Treatise on Modern Pure Geometry. London, England: Macmillian, pp. 251-252, 1893.Referenced on Wolfram|Alpha
Associated TrianglesCite this as:
Weisstein, Eric W. "Associated Triangles." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/AssociatedTriangles.html