### Home > ACC7 > Chapter 9 Unit 10 > Lesson CC3: 9.2.3 > Problem 9-96

9-96.

For each diagram below, solve for . Explain what method you used for each problem.

The two angles are complementary, meaning they have a sum of

.

The two angles are supplementary (have a sum of

).

According to the Angle Sum Theorem, the sum of the interior angles of a triangle is

.

How did you solve part (c)? Use the same method.