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16 March, 06:20

If the diameter of a circle is 20mm, what is the area of the circle?

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  1. 16 March, 07:56
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    314.16 sq mm

    Step-by-step explanation:

    formula for area of a circle = pi (r^2)

    if the diameter is 20mm then the radius is 10 mm

    When you plug in pi (10mm^2) you get 314.16 sq mm
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