The Equation of a Plane

Describing a flat surface in 3D space using a normal vector.

Equation of a Plane

The vector equation of a plane with normal vector $\vec{n}$, passing through a point with position vector $\vec{a}$:

$$(\vec{r} - \vec{a}) \cdot \vec{n} = 0$$

Angle Between Two Planes

Found using the dot product of their respective normal vectors.

Lesson 27 of 32
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