Can anyone teach me how to calculate a pie chart?

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with the angles only given

Posted Thu 8th November, 2012 @ 17:19 by princess

3 Answers

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  1. Draw a circle on a blank sheet of paper, using the compass. While a compass is not necessary, using one will make the chart much neater and clearer by ensuring the circle is even.
  2. Draw a horizontal line, or radius, from the center to the right edge of the circle, using the ruler or straight edge. This will be the first base line.

  3. Measure the largest angle in the data with the protractor, starting at the baseline, and mark it on the edge of the circle. Use the ruler to draw another radius to that point. Use this new radius as a base line for your next largest angle and continue this process until you get to the last data point. You will only need to measure the last angle to verify its value since both lines will already be drawn.

  4. Label and shade the sections of the pie chart to highlight whatever data is important for your use.

Hope this helps!

Answered Thu 8th November, 2012 @ 18:45 by Sophie
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thanks but how do I work it out if they only give me angles

Answered Thu 8th November, 2012 @ 19:44 by princess
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do you ever get an exam question like that.. because usually exam questions would expect you to find the angles with the data given.

I can explain to you how to find a missing angle.. but im not sure what you want..

the other thing you could try .. is do the opposite / inverse to finding a missing angle :S

Answered Thu 8th November, 2012 @ 20:28 by ? Secret - Team GR