Question

which is the definition of a ray? the set of all points in a plane that are a given distance away from a given point lines that lie in the same plane and do not intersect a part of a line that has one endpoint and extends indefinitely in one direction a part of a line that has two endpoints

Explanation:

A ray has one endpoint and extends infinitely in one direction.

Answer:

a part of a line that has one endpoint and extends indefinitely in one direction