Question

parallel lines r and s are cut by two transversals, parallel lines t and u. how many angles are alternate exterior angles with angle 5?

Explanation:

Step1: Recall alternate - exterior angles definition

Alternate - exterior angles are on opposite sides of the transversals and outside the parallel lines.

Step2: Identify relevant angles

For angle 5, its alternate - exterior angles are angle 12 and angle 15.

Answer:

2