### Home > PC3 > Chapter 2 > Lesson 2.2.2 > Problem 2-67

2-67.

Roger is in an Algebra 2 class and has discovered the radian setting on his calculator. He has not learned about radians but would like to know what they are.

Explain to Roger how a radian is defined.

1 radian is the angle measure found by wrapping one radius around a circle.

What are the steps Roger needs to do to covert

to radians? Us a Giante One of

. Show him how to change

radians to degrees.