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 infinitely, and ray AC starts at point A and extends towards C infinitely. Since they share a common endpoint A and extend 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 with common endpoint A also form an angle of 180 degrees (a straight - angle).

Answer:

Rays AB and AC share a common endpoint A. They extend in opposite directions from A, which makes them form a line. Also, as two rays with a common endpoint, they form an angle (a 180 - degree angle or a straight - angle).