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    Question

    If the surface area of a sphere is 1386 cm2 ,

    then find the radius of the sphere.
    A 12.5 cm Correct Answer Incorrect Answer
    B 10.5 cm Correct Answer Incorrect Answer
    C 10 cm Correct Answer Incorrect Answer
    D 12 cm Correct Answer Incorrect Answer

    Solution

    The surface area of a sphere =4πr2 = 1386 

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