Question

sample response: an angle is defined as two rays with a common endpoint, so cab (or bac) is an angle. a line is described as an infinite set of points that extend forever in either direction, which these rays also do. what did you include in your response? check all that apply. angles are rays with a shared endpoint. lines extend forever in either direction. rays ab and ac extend forever in either direction.

Explanation:

• The sample response clearly states that an angle is two rays with a common endpoint, which matches the first option.
• It also mentions that a line (and by extension, rays which are part of the line concept here) extends forever in either direction, aligning with the second option.
• The third option is incorrect as rays have one - endpoint and extend infinitely in one direction, not in either direction like a line.

Answer:

Angles are rays with a shared endpoint, Lines extend forever in either direction.