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3 May, 19:40

The floor of a circular orchestra room has an area of 28.26 square meters. What is the radius of the floor? Use = 3.14.

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  1. 3 May, 23:30
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    Area = PI x r^2

    28.26 = 3.14 x r^2

    r^2 = 28.26 / 3.14

    r^2 = 9

    r = sqrt (9)

    r = 3 meters
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