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 Description  
 Circle Graph:  A graph that displays categorical data in the form of a circle. The circular region is divided into a number of pie-shaped sectors to represent portions of the data. This type of graph is sometimes refered to as a pie chart.
A circle graph shows how parts relate to a whole and to each other. The area of each sector indicates the percentage of the whole that the part represents.

Example circle graph:



In this example, Clinton had almost 50% of the popular vote, so the red sector fills in half of the circle. Dole got a smaller percentage of the popular vote than did Clinton, but he got more than Perot did. So the green and blue sectors have been filled in proportionally.

Click here to see how the above graph is made.