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26 November, 11:53

What is the area of a circle with a circumference of 11 pi

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  1. 26 November, 14:49
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    Circumference=2pir

    area=pir^2

    circumference=2pir=11pi

    2pir=11pi

    divide by pi

    2r=11

    divide by 2

    r=5.5

    subsitute

    area=pir^2

    area=pi5.5^2

    area=pi30.25

    area=30.25pi suqare units

    aprox with pi=3.14

    area=94.985 suqare units
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