Question

Two parallel lines are crossed by a transversal.

Horizontal and parallel lines p and q are cut by transversal m. At the intersection of lines p and m, the bottom left angle is b degrees. At the intersection of lines q and m, the top right angle is 128 degrees.
What is the value of b?

b = 32
b = 52
b = 118
b = 128

Answer 1

b = 128

Reason: The bottom-left angle at p and the top-right angle at q are alternate interior angles with respect to transversal m and parallel lines p and q, so they are equal.