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Home > CCG > Chapter 8 > Lesson 8.3.1 > Problem 8-97

8-97.

For each diagram below, write and solve an equation to find . Homework Help ✎

  1. 8-97 diagram a

    The sum of the interior angles .

    sum from Step 1

  1. 8-97 diagram b

    Mark the angles that are vertical to the labeled angles. What do you know about the angles that you marked?