explain pie concept for 11th class
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Pie diagram is a circle divided into various segments showing the per cent values of a series. This diagram does not show absolute values of each category. The values of each category are first expressed as percentage of the total value of all the categories. Such diagram is known as sector diagram.
Pie charts are used in data handling and are circular charts divided up into segments which each represent a value. Pie charts are divided into sections (or 'slices') to represent values of different sizes. For example, in this pie chart, the circle represents a whole class.
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