Griffiths' Theorem

Griffith's theorem animation

When a point P moves along a line through the circumcenter of a given triangle Delta, the pedal circle of P with respect to Delta passes through a fixed point (the Griffiths point) on the nine-point circle of Delta.

See also

Circumcenter, Griffiths Points, Nine-Point Circle, Pedal Circle

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Cite this as:

Weisstein, Eric W. "Griffiths' Theorem." From MathWorld--A Wolfram Web Resource.

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