Question: If angle A and angle B are alternate exterior angles formed by two parallel lines cut by a transversal, and angle A measures 45 degrees, what is the measure of angle B?

Options:

1. 45 degrees
2. 135 degrees
3. 90 degrees
4. 180 degrees

Correct Answer: 45 degrees

Solution:

Alternate exterior angles are equal, so angle B also measures 45 degrees.