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Home > CCG > Chapter 7 > Lesson 7.1.3 > Problem 7-37


Examine the relationships in the diagrams below. For each one, write an equation and solve for the given variable(s). Show all work.  Homework Help ✎

  1. triangle

    Since the triangle is isosceles, the angles shown are equal.

  1. diagram

    First solve for , then . Refer to the Math Notes box in Lesson 2.1.4 if you need help remembering any specific angle pair relationships.

  1. parallelogram

    Same side interior angles are supplementary.

  1. triangle

    Use the Law of Cosines to solve for .