four times the area of curved surface of a cylinder is equal to 6 times the sum of the area of its two bases if its size is 12 fin

four times the area of curved surface of a cylinder is equal to 6 times the sum of the area of its two bases if its size is 12 find its curved surface area.​

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1 thought on “four times the area of curved surface of a cylinder is equal to 6 times the sum of the area of its two bases if its size is 12 fin”

  1. Solution:

    • Curved Surface Area cylinder = 2πrh
    • Area of the base = πr²

    Sum area of the base= πr²+πr²= 2πr²sq.cm

    A.T.Q

    • => 4 (2πrh) = 6 × 2πr²
    • => 8πrh = 12πr²
    • => 2h = 3r
    • => 2 × 12 = 3r

    r = 8cm.

    Curved Surface Area cylinder = 2πrh

    • => 2 × 22/7 × 8 × 12
    • => 4224/7
    • => 603.42 sq.cm
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