A circle is divided into five equal parts. What is the total angle measure of four parts?
Since a circle has a total of 360 degrees, each part of the circle is 360/5 = 72 degrees.
To find the total angle measure of four parts, we can simply multiply 72 degrees by 4:
72 degrees * 4 = 288 degrees
Therefore, the total angle measure of four parts of the circle is 288 degrees.