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    I need the formula to calculate the following areas on a cylinder

    cylinder is radius - 5 centimetres
    height - 10 centimetres

    0  Views: 324 Answers: 1 Posted: 12 years ago

    1 Answer

    HI CYLINDER   RAD 5CENT    HEIGHT 10CM


    SURFACE AREA  FORMULE IS   TOP     Pi x r x r          BOTTOM   Pi x r x r    SIDE 2Pi X r x h


    THEREFORE  Pi = 22/7               22/7 X 5 X 5 = 550/7  = 78.57 SQ CM       BOTTOM THE SAME


    SIDE  2 X 22/7 X 5 X 10 = 2200/7 = 314.285  TOTAL SURFACE AREA  = 78.57+78.57+314.285= 471.42571 sq cm


    HOPE THIS HELPS


     



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