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1 September, 18:13

To the nearest tent what is the area of circle whose diameter is 21 inches

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  1. 1 September, 18:52
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    It depends

    Step-by-step explanation:

    Area of a circle is given by

    A = pi * r^2

    We can find the radius by taking 1/2 of the diameter

    r = 1/2 (21)

    r = 10.5

    A = pi * (10.5) ^2

    A = 110.25 pi

    Approximating pi with 3.14

    A = 110.25 * 3.14

    A = 346.185 in^2

    To the nearest tenth

    A = 346.2 in^2

    If we use the pi button on the calculator

    A = 346.3605901

    Rounding to the nearest tenth

    A = 346.4 in^2

    You need to determine whether you approximate pi by 3.14 or use the pi button on your calculator
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