## Chapter 9, Lesson 2

9-2.A understand the meaning of the measure of an angle

**Which statements are true about the measures of angles A and B?**

**I** measure of angle *A* : measure of angle *B* = 4 in. : 3 in.**II** measure of angle *A* — measure of angle *B* = I in.**III** measure of angle *A* = measure of angle *B*B**(a)** I, II, and III **(b)** I only **(c)** II only **(d)** III only

**9-2.B** recognize perpendicular lines

**Which pairs of lines appear to be perpendicular?**

**(a)** I, II, and III **(b)** I and II only **(c)** I and III only **(d)** I only