Angle Between a Line and a Plane

Angle Between a Line and a Plane

If a line has direction vector $$\vec d$$ and the plane has normal vector $$\vec n$$, then the angle $$\theta$$ between the line and plane satisfies:

$$\sin\theta=\frac{|\vec d\cdot\vec n|}{|\vec d||\vec n|}$$

Usage

- Used to find the angle between a line and a plane.