Pie charts show percentages ... a collection of points on the graph, ideally with an equal number of points on either side of the line. Pictograms are like bar charts, but they use small pictures ...

To produce a pie chart, data is required. The data often comes in the form of a table ... Construct a pie chart to represent the data. Divide 360° by this value. 360 ÷ 18 = 20°.