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8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    The curved surface area of a right circular cylinder of height 14 cm is 88 \[\mathbf{c}{{\mathbf{m}}^{\mathbf{2}}}\]. Find the diameter of the base of the cylinder.

    A)  2 cm     

    B)  5cm          

    C)  4 cm                           

    D)  6 cm

    Correct Answer: A

    Solution :

    (a): \[2\pi rh=88\] \[\Rightarrow r=\frac{88}{2\pi }=~\frac{88\times 7}{2\times 22\times 14}=1.\]


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