
Introduction to Circle GraphsCircle graphs are often referred to as pie charts. A circle graph expresses data as parts of a whole. Each section of the pie shows a fraction of the total amount. In a circle graph, the circle equals 100 percent. Each part of the circle, called a sector or section, represents a piece of the data. Circle graphs permit a comparison of a whole and its parts by dividing off slices of the circle. When reading a circle graph, review the following features:
