Multiple Choice Questions on A solid toy is in the form of a hemisphere surmounted by a right circular cone Height of the cone is........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A solid toy is in the form of a hemisphere surmounted by a right circular cone Height of the cone is...........

Quantitative Aptitude ( CCS) Mensuration 3D
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    A solid toy is in the form of a hemisphere surmounted by a right circular cone. Height of the cone is 2cm and the diameter of the base is 4cm. If a right circular cylinder circumscribe the solid, find how much more space will it cover?

    4π cm³

    Incorrect Answer

    2π cm³

    Incorrect Answer

    16π cm³

    Incorrect Answer

    8π cm³

    Correct Answer
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    Explanation:

    R of hemisphere =4/2 = 2cm
    H of cylinder = 4cm
    R of cone = 2cm
    V of cylinder – volume of solid =
    =π*2²*4 –(2/3 π*2³+1/3*π*2³)
    = 16π − 8π = 8π

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