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25 January, 14:47

In a class, 21 students have black hair, 11 students have blonde hair, 9 students have brown hair and 4 students have red hair. Determine the sector angles needed to construct a circle graph. Determine a name for the circle graph.

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  1. 25 January, 15:23
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    Total = 45

    Black hair=21*360/45=168

    Blonde=11*360/45=88

    Brown=9*360/45=72

    Red=4*360/45=32
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