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math: advanced geometry

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a sphere has a volume of 12,348pi cubic inches. Find the surface area of the sphere.

  • math: advanced geometry -

    (4/3)πr^3 = 12348π
    r^3 = 9261
    r = cuberoot(9261) = 21

    SA = 4πr^2 = 4π(441) = 1764π square inches

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