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Home > CCG > Chapter 6 > Lesson 6.2.3 > Problem 6-74

6-74.

For each diagram below, use geometric relationships to solve for the given variable(s). Check your answer. Homework Help ✎

  1. diagram

    The angle that is and the angle are complementary.
    Complementary means the angles add up to _____

  1. diagram

    Adjacent angle pairs that form a straight line are supplementary and base angles of an isosceles triangle are equal.

  1. diagram

    First solve for , then solve for .

  1. diagram

    Since the triangle is isosceles, start by solving for .
    Next, solve for the unknown interior angle.
    Then use the Law of Sines to solve for .

    Refer to the Math Notes box in Lesson 5.3.2 if you need help remembering the Law of Sines.