Length of Tangent from a Point to a Sphere
For a sphere with centre $$c$$ and radius $$r$$, if point $$p$$ is outside the sphere:
$$PT=\sqrt{PC^2-r^2}$$
Usage
- Used to find the length of a tangent drawn from an external point to a sphere.
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CAT Formulas
Three Dimensional Geometry
Length of Tangent from a Point to a Sphere
Length of Tangent from a Point to a Sphere
For a sphere with centre $$c$$ and radius $$r$$, if point $$p$$ is outside the sphere:
$$PT=\sqrt{PC^2-r^2}$$
Usage
- Used to find the length of a tangent drawn from an external point to a sphere.
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