CPM Homework Banner

Home > CCG > Chapter 10 > Lesson 10.2.2 > Problem 10-88


Examine the diagram below. Use the given geometric relationships to solve for . Be sure to justify your work by stating the geometric relationship and applicable theorem.  Homework Help ✎


Use the Triangle Angle Sum Theorem to find .

Vertical angles are equal. Use this information to find .

When solving for , remember that parallel lines have equal corresponding angles.