Carmen found m∠1 this way:

Correct Answer:

Carmen is not correct. Angle 1 and the angle measuring 105° are not alternate exterior angles; instead, angle 1 is an alternate exterior angle with angle 3. Since angle 3 and the 105° angle are supplementary (forming a linear pair or consecutive exterior relation), the measure of angle 3 is 180° - 105° = 75°. Therefore, the measure of angle 1 is also 75°.