Pie Chart

Updated 01 Oct 2026

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What it is
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  divides a circle into sectors representing non-overlapping parts of one whole
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Formula
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  sector angle: $\theta_i=360^\circ(f_i/n)$
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Limitations
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  categories must share the same denominator and collectively represent the intended whole
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  similar-sized slices are difficult to compare; Bar Chart often supports more preicse comparisons

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