Multiple Choice Questions on A sphere of radius 21 cm is cut into 8 identical parts by 3 cuts 1 cut along each axis What will be ........... for SSC CGL Exam Preparation

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Multiple Choice Questions

A sphere of radius 21 cm is cut into 8 identical parts by 3 cuts 1 cut along each axis What will be ...........

Quantitative Aptitude (CGL) Mensuration 3D
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    A sphere of radius 21 cm is cut into 8 identical parts by 3 cuts (1 cut along each axis). What will be the total surface area (in cm2) of each part?

    844.5

    Incorrect Answer

    1732.5

    Correct Answer

    1039.5

    Incorrect Answer

    1115.6

    Incorrect Answer
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    Explanation:

    (πr^2+2πr^2+2πr^2)/4
    =>5πr^2/4
    =>(5*22*21*21)/(7*4)=1732.5

    By: MIRZA SADDAM HUSSAIN
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