Question

planes a and b intersect. which describes the intersection of planes a and b? line cd line ed point c point d

Explanation:

According to the geometric principle, when two planes intersect, their intersection is a line. Looking at the figure, line CD is the common line that lies on both planes A and B. Line ED is not common to both planes. A point (like point C or point D) cannot be the intersection of two planes as two planes' intersection is a set of infinitely many points (a line), not a single point.

Answer:

line CD