### Home > GB8I > Chapter 9 Unit 3 > Lesson CC3: 9.2.2 > Problem 9-78

9-78.

Solve for . Each part is a separate problem.

If

and, find.Angles 1 and 5 are corresponding angles. Since lines

andare parallel, the angles are equal.If

and, find.Angles 3 and 6 are alternate interior angles. Since lines

andare parallel, the angles are equal.If

and, find.Angles 4 and 6 are supplementary because the lines cut by the transversal are parallel.