Question

1. is it possible for the intersection of two planes to be a segment? a line? a ray? sketch the possible situations.

Explanation:

Step1: Recall plane - intersection property

Planes are infinite flat surfaces.

Step2: Analyze intersection possibilities

When two planes intersect, they intersect in a straight - line. A segment has two endpoints and is finite, and a ray has one endpoint and extends infinitely in one direction. Since planes are infinite, their intersection cannot be a segment or a ray.

Answer:

The intersection of two planes can be a line. It cannot be a segment or a ray.