Pie charts show percentages as a circle, divided into segments. A pie chart could be used to show how students travel to school. Each piece of data is shown as a proportion of 360, because there ...

Note that the hole in the center of the pie should measure about 60 percent of the circle’s diameter. An alternate way to display similar information is with a dot chart. A 10-by-10 grid of dots can ...

Pie charts should be converted into accessible tables. It is not necessary to describe the visual attributes of the charts, e.g., red wedge, blue lines, etc., unless there is an explicit need such as ...

No slice is drawn if the chart statistic for the midpoint is 0. order the slices by midpoint value in ascending order starting at the three o'clock position and proceeding counterclockwise around the ...