Question

Two parallel lines are crossed by a transversal.

Horizontal and parallel lines k and l are cut by transversal j. At the intersection of lines k and j, the bottom left angle is 120 degrees. At the intersection of lines l and j, the top left angle is h degrees.
What is the value of h?

h = 60
h = 80
h = 100
h = 120

Answer 1

h = 120

Reason: When two parallel lines are cut by a transversal, corresponding angles are congruent. The bottom-left angle at k corresponds to the top-left angle at l, so h = 120°.