Geometry

The correct answers are B.plane ABC and C.plane D.

A plane can be named by any three non - collinear points on the plane or by a single uppercase letter assigned to the plane.

A.For “plane AED”: Points A, E, and D are collinear (they lie on the same line), so this is not a correct way to name the plane.

B.For “plane ABC”: Points A, B, and C are non - collinear. So “plane ABC” is a correct way to name the p...