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23 December, 08:26

If the radius of a circle with a area of 5.3 mm squared is multiplied by 5,

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  1. 23 December, 09:01
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    I'm guessing the question is meant to be " If the radius of a circle with a area of 5.3 mm squared is multiplied by 5, what will the new area be?", so i'll answer that.

    Area of a circle = πr^2

    5.3=πr^2, 5.3=π (5r) ^2

    132.5=25πr^2
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