if you go on to bbc maths revition and type in on search pi with no e it should come up. :)
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Yes. Angles are used to draw pie charts so that each portion has an equal amount of the circle by the total.
1. Add all the numbers together to get the total. (e.g. 3+4+5= 12)2. Divide each number by the total, noting your results (3/12= 0.25, 4/12+0.3333, 5/12=0.1467)3. Multiply each of the results by 360, that will give you your answer in degrees (0.25x360= 90 degrees, 0.3333x360= 120 degrees, 0.1437x360= 150 degrees4. Add the answers together to insure you haven't made any mistakes. If you have made a mistake you will not get 360. (90+120+150= 360)An easier way to calculate the angles for a pie chart is to:divide 360 by the total of your informationkeep note of the division answer then multiply every number by your division answeradd the angles together to make sure you have 360
With a protractorif it is a computer generated pie chart, find the fraction, and divide into 360
After the pie chart has been created, select the chart and open the Chart menu. Pick the 3-D View option. In it you will find various ways of manipulating the pie chart, including rotating it.
Since a complete circle is 360 degrees, a 30-degree part of a circle is 30/360, or 1/12, of the pie.