A pair of parallel lines is cut by a transversal:

A pair of parallel lines cut by a transversal is shown. The inside bottom right angle is labeled 80 degrees. The alternate interior angle is cut by a ray and is labeled as x on one side and 15 degrees on the other.
What is the measure of angle x? (4 points)

60 degrees

65 degrees

70 degrees

80 degrees

1 answer

The alternate interior angles are congruent, so angle x is also 15 degrees.