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10 May, 01:37

What is the surface area of a sphere with a radius of 11 units? Leave it in pi

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  1. 10 May, 02:46
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    The answer is 484 π units²

    The area of a sphere with radius r is:

    A = 4πr²

    We have:

    A = ?

    r = 11 units

    So:

    A = 4π * 11²

    A = 4π * 121

    a = 484 π units²
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