Question

    If the diameter of a sphere is 63 cm, then what is the

    total surface area of the sphere?
    A 11248 cm^2 Correct Answer Incorrect Answer
    B 11824 cm^2 Correct Answer Incorrect Answer
    C 12836 cm^2 Correct Answer Incorrect Answer
    D 12474 cm^2 Correct Answer Incorrect Answer

    Solution

    diameter of sphere =63 radius of sphere =31.2cm now, total surface area sphere =4πr 2 =4×22/7×31.5×31.5 = 4×22/7×992.25 =87318/7 =12474cm2

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