Multiply the quotient of the number and the total by 360 degrees.
If there are three parts that you want to convert to a circle graph (say 12, 9 and 15)
Step 1: Add all the numbers together.
Step 2: Multiply the quotient of each number and the total by 360 degrees.
This is how you convert a number for a part into its corresponding angle measure.
1. A circle graph may be used when there is some meaning to the
total of the observations. It may be a sensible option when there
are at most seven sectors, none of which are too small.