### Home > PC > Chapter 1 > Lesson 1.4.2 > Problem 1-147

1-147.

Make a ratio comparing a half circle in degrees and radians.

Follow a similar process as (a).

Follow a similar process as (a).

1-147.

Make a ratio comparing a half circle in degrees and radians.

Follow a similar process as (a).

Follow a similar process as (a).