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Power of a Point
For point $$p$$ and circle with centre $$c$$ and radius $$r$$:
$$\operatorname{Power}(P)=PC^2-r^2$$
Usage
- Used to determine the position of a point relative to a circle and the tangent length from an external point.
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Power of a Point
For point $$p$$ and circle with centre $$c$$ and radius $$r$$:
$$\operatorname{Power}(P)=PC^2-r^2$$
Usage
- Used to determine the position of a point relative to a circle and the tangent length from an external point.
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