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8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    The ratio of total surface area to lateral surface area of a cylinder whose radius is 80 cm and height 20 cm is :

    A) 2:1                              

    B) 3:1

    C) 4:1                              

    D) 5:1

    Correct Answer: D

    Solution :

    Let height and radius of the cylinder be h cm and r cm respectively. Total surface area \[8cm\times 6cm\] Lateral surface area \[22\frac{2}{3}sq.cm\] \[25\frac{2}{3}sq.cm\] \[Rs.3.50c{{m}^{2}}\]


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