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pie charts

drawing pie charts

To show this information in a pie chart, take the following steps:

  1. Work out the total number of pupils: 7 + 11 + 6 + 4 + 2 = 30

  2. To work out the angle of each segment, work out the fraction of the total that got each grade.

  3. Start with A grades: 7 /30

  4. There are 360° in a full turn, so to work out the angle, multiply the fraction by 360: 7 /30 × 360 = 84°

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