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8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    It is required to construct a conical circus tent of radius 21 m and 35m slant height. The width of the canvas cloth is 3 metres. What will be the length of the cloth which shall do the needful?

    A) 700m                          

    B) 1250m

    C) 776.5m                       

    D) 770m

    Correct Answer: D

    Solution :

    Let the length of cloth be \[57\frac{3}{4}sq.cm\] metres. The area of cloth = surface area of cone \[6c{{m}^{2}}\] \[12c{{m}^{2}}\] \[{{P}^{2}}%\]        \[28\pi sq.units\]


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