Definition:Pedal Circle

Definition

Let $\triangle ABC$ be a triangle.

Let $P$ be a point in the plane of $\triangle ABC$.

Let $\triangle DEF$ be the pedal triangle of $P$ with respect to $\triangle ABC$.

The circumcircle of $\triangle DEF$ is known as the pedal circle of $P$ with respect to $\triangle ABC$.

Also see

• Results about pedal circles can be found here.

Sources

• Weisstein, Eric W. "Pedal Circle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PedalCircle.html