First Yff Triangle
FirstYffTriangle
The first Yff triangle is the Cevian triangle DeltaA^'B^'C^' of the first Yff point. The area of the first Yff triangle is
where R is the circumradius of the reference triangle. This is the same area as the second Yff triangle.
See also
Second Yff Triangle, Yff Central Triangle, Yff Contact Triangle, Yff PointsExplore with Wolfram|Alpha
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References
Yff, P. "An Analog of the Brocard Points." Amer. Math. Monthly 70, 495-501, 1963.Referenced on Wolfram|Alpha
First Yff TriangleCite this as:
Weisstein, Eric W. "First Yff Triangle." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/FirstYffTriangle.html