Question

2 planes can intersect in which of the following ways

• A. Point
• B. Line
• C. Plane
• D. Do not intersect at all

Answer 1

Answer: (B), (C), (D)

Do not intersect at all

Let’s discuss the possible cases. 2 planes can be parallel or not parallel.

When they are parallel they can overlap which means both represent the same plane. If both the planes don’t have even one point in common they don’t intersect at all.

If 2 planes are not parallel then they intersect in a straight line.

Therefore, they intersect either is in a line or a plane.

Answer is both b, c and d.