What are coplanar vectors?
The co-planar vectors.
In geometry, a set of points in space are coplanar if there exists a geometric plane that contains them all.
In space, coplanar vectors are vectors that are on the same plane. Any two random vectors are always coplanar in a plane.
Two lines' coplanarity exists in a space that is represented in vector form, whenever the scalar product of three vectors is zero, coplanarity is established.