Question

what is this? line line segment ray

Explanation:

A line segment is a part of a line that has two distinct endpoints. In the given image, the figure has two endpoints (the two green dots), which fits the definition of a line segment. A line extends infinitely in both directions and has no endpoints. A ray has one endpoint and extends infinitely in one direction. Since the figure here has two endpoints, it is not a line or a ray.

Answer:

line segment