Please ensure Javascript is enabled for purposes of website accessibility

Points that lie on the same plane are called coplanar points.

coplanar points

Points A, B, and C lie on the same horizontal plane. Therefore, they are coplanar. 

Similarly, points D, E, and F are coplanar because they lie on the same vertical plane.

However, points B, E and D are not coplanar because they are found on different planes.