What is another name for a pie chart?

A pie chart is also known as a circle graph because it visually represents data as slices of a circular pie. Each slice corresponds to a proportion of the whole, providing a way to compare different parts of a dataset. This method is particularly useful for displaying the composition of a dataset, showing how individual parts contribute to the total. The terminology "circle graph" emphasizes the round shape of the chart, which is characteristic of pie charts.

The other options represent different types of graphs that serve distinct functions: bar graphs display data using rectangular bars to compare quantities, line charts illustrate trends over time with connected points, and scatter plots show relationships between two variables with individual data points plotted on a coordinate system. Each serves specific purposes, but they do not represent data in the segmenting manner typical of pie charts.