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 ...

Bus = 3 × 20 = 60. These angles should add up to ... out of 360°, the number of degrees in a full turn. A pie chart may include the percentages of what each sector represents.