Are points D and E collinear or coplanar?
Also, are coplanar points also collinear?
Collinear points are all in the same line. Coplanar points are all in the same plane. So, if points are collinear then we can choose one of infinite number of planes which contains the line on which these points lie => so they are coplanar by definition.
Also to know is, what is the difference between collinear points and coplanar points?
Collinear points are points all in one line and non collinear points are points that are not on one line. Below points A, F and B are collinear and points G and H are non collinear. Coplanar points are points all in one plane and non coplanar points are points that are not in the same plane.
Coplanar. Points or lines are said to be coplanar if they lie in the same plane. Example 1: The points P , Q , and R lie in the same plane A . They are coplanar .