Question

Two parallel lines are crossed by a transversal. Horizontal and parallel lines g and f are cut by transversal h. At the intersection of lines g and h, the bottom left angle is a degrees. At the intersection of lines f and h, the bottom left angle is 63 degrees.

Answer 1

117

Explanation:

Answer 2

117 degrees

Explanation:

According to Alternate Exterior Angles Theorem, and then Definition of linear pair, the angle A and the angle that is 63 degrees are supplementary:

Thus, we can use the following equation to find A:

A+63=180

A=180-63

A=117 degrees