### Home > ACC7 > Chapter 9 Unit 10 > Lesson CC3: 9.1.3 > Problem 9-34

9-34.

In each angle problem below, solve for the variable(s). Write the names of the definition(s) and relationship(s) that justify the steps in your solution.

The angle measuring

is an exterior angle to the triangle.

or

An exterior angle is equal to the sum of the remote interior angles.