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Yff Triangles


The Triangle $\Delta A'B'C'$ formed by connecting the points used to construct the Yff Points is called the first Yff triangle. The Area of the triangle is

\Delta = {u^3\over 2R},

where $R$ is the Circumradius of the original Triangle $\Delta ABC$. The second Yff triangle is formed by connecting the Isotomic Conjugate Points of $A'$, $B'$, and $C'$.

See also Yff Points


Yff, P. ``An Analog of the Brocard Points.'' Amer. Math. Monthly 70, 495-501, 1963.

© 1996-9 Eric W. Weisstein