### Home > GB8I > Chapter 3 Unit 4 > Lesson INT1: 3.3.3 > Problem 3-139

3-139.

Examine the diagram at right. Then use the information provided in the diagram to find the measures of angles and

*. For each angle, name the relationship that helped justify your conclusion. For example, did you use vertical angles? If not, what type of angle did you use?*

Review the Math Notes box in Lesson 1.2.1.