Question

explain how rays ab and ac form both a line and an angle.

Explanation:

A ray has one - endpoint and extends infinitely in one direction. Ray AB starts at point A and extends towards B, and ray AC starts at point A and extends towards C. When the non - common parts of the two rays are in opposite directions, they together form a straight line. An angle is formed by two rays with a common endpoint. Here, rays AB and AC have a common endpoint A, so they form an angle (in this case, a straight angle of 180 degrees).

Answer:

Rays AB and AC have a common endpoint A. When their non - common parts are in opposite directions, they form a line. Since they share a common endpoint A, they also form an angle (a straight angle in this case).