A pie chart gives dashboard consumers an immediate visual clue of the relative sizes of the shares of a whole. Categories are represented by individual slices. The size of the slice in a pie chart is determined by the value.
You can animate a pie chart if you want its pieces to be exploded, which means that the individual slices of the pie can be pulled away from the rest of the pie.
To animate a pie, enable Animated check box in the Chart Designer.