Circles are an effective way to show distances from a point making this application an exception to my usual criticism of circles and bubbles in graphs.

Excel displays percentages of a whole using pie charts, also known as wedge charts of circle graphs. Businesses tend to rely on such charts. The diagrams appear cluttered when graphing many items ...

This example shows how to use an Annotate data set to draw a flag that is composed of a rectangle and four stars. The stars are positioned by placing them on an imaginary circle. The program uses the ...