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14 May, 10:45

Calcule a área do círculo que tem de diâmetro a 20cm

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  1. 14 May, 10:46
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    Area of circle is πr^2

    Diameter is given = 20 cm

    Radius r=d/2=20/2=10cm

    A=3.14*100

    A=314 cm^2
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