Question

two parallel lines are crossed by a transversal. what is the value of y? y = 40 y = 80 y = 100 y = 120

Explanation:

Step1: Recall angle - pair relationship

When two parallel lines are cut by a transversal, corresponding angles are congruent. The angle of 80° and the angle with measure y are corresponding angles.

Step2: Determine the value of y

Since corresponding angles are equal, y = 80.

Answer:

y = 80