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A closed cylindrical tank of radius …

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A closed cylindrical tank of radius 7m and height 3m is made from a sheet of metal. How much sheet of metal is required?

    • Posted by Revathi Sivaraman 6 years, 3 months ago

    CBSE > Class 08 > Mathematics
    • 1 answers

    Yogita Ingle 6 years, 3 months ago

    Radius of Cylindrical tank(r)= 7m

    Height of cylindrical tank (h)=3m

    Total surface area of cylindrical tank= 2πr(h+r)

     

    Total surface area of cylindrical tank=2× (22/7)×7(3+7)

    = 44×10= 440 m²

    Total surface area of cylindrical tank= 440 m²

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