CPM Homework Banner

Home > PC > Chapter 4 > Lesson 4.1.4 > Problem 4-54


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

  1. Explain to Roger how a radian is defined.

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

  2. Show him how to change 240° to radians.

    Use a Giant One of .

  3. Show him how to change radians to degrees.