To draw a pie chart, we need to represent each part of the data as a proportion of 360, because there are \(360^{\circ}\) in a circle. For example, if 55 out of 270 vehicles are vans, we will ...

The circle of the pie chart represents the whole. That's a full 360 degrees. Each part, or slice, represents part of the whole. The bigger the slice, the larger the part it represents. The whole ...