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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.