Multiple Choice Questions on What is the diameter of the largest circle lying on the surface of a sphere of surface area 616 sq c........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

What is the diameter of the largest circle lying on the surface of a sphere of surface area 616 sq c...........

Quantitative Aptitude ( CCS) Mensuration 3D
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    What is the diameter of the largest circle lying on the surface of a sphere of surface area 616 sq cm ?

    14 cm

    Correct Answer

    10.5 cm

    Incorrect Answer

    7 cm

    Incorrect Answer

    3.5 cm

    Incorrect Answer
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    Explanation:

    Given that,
    Surface area of sphere = 616 cm2
    ∴  4πr2 = 616
    ⇒  r2 = 616/4π
    = 616 × 7 / 4 X 22 = 49
    ⇒  r = 7 cm
    ∴  Diameter of largest circle lying on sphere = 2r = 2 × 7 = 14 cm

    By: Amit Kumar
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