Question

determine if the properties define a ray or a line segment. cannot be measured has a definite beginning and end continues forever in one direction can be measured has two endpoints has one endpoint ray line segment

Explanation:

A ray has one endpoint and continues forever in one direction, so it cannot be measured. A line - segment has a definite beginning and end (two endpoints), so it can be measured.

Answer:

cannot be measured: Ray
has a definite beginning and end: Line Segment
continues forever in one direction: Ray
can be measured: Line Segment
has two endpoints: Line Segment
has one endpoint: Ray