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18 March, 14:03

If the radius of a circle with an area of 125 mm squared is reduced by half, what is the area of the new circle?

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  1. 18 March, 14:21
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    Step-by-step explanation:

    πr² = 125 mm²

    Now radius = r/2

    New circle's area = π (r/2) ² = πr²/4 = 125/4 = 31.25 mm²
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