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Antipedal Line


If P is a point on the circumcircle of a reference triangle, then the line PP^(-1), where P^(-1) is the isogonal conjugate of P, is called the antipedal line of P. It is a central line if P is a center (Kimberling 1998, p. 150).


See also

Antipedal Triangle, Central Line, Isogonal Conjugate, Pedal Line

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References

Kimberling, C. "Triangle Centers and Central Triangles." Congr. Numer. 129, 1-295, 1998.

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Antipedal Line

Cite this as:

Weisstein, Eric W. "Antipedal Line." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/AntipedalLine.html

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