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Home > CC3 > Chapter 8 > Lesson 8.3.1 > Problem 8-130

8-130.

Find the value of each indicated angle in the following figures. Do not use a protractor. Use the properties of straight and vertical angles to help you. Homework Help ✎

  1. angle

    These angles are supplementary.

  1. angle

and b are vertical angles. What does that tell you about the measure of angle b?

  1. angle

Set up an equation relating and d.
.

Subtract 133° from both sides.
°.

47°

  1. angle

    d and are vertical angles, and f and are supplementary.

  1. angle

    . Refer to part (c) for the steps to solving this problem.