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c.math

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the total surface area of a cylinderical can, whose height is equal to the radius of the base is 2646 cm, find its volume.

  • c.math - ,

    2πr^2 + 2πrh = 2646
    Now, we know that h=r, so that means
    4πr^2 = 2646
    r^2 = 2646/4π =

    The volume v is
    v = πr^2 h = πr^3 = π(2646/4π)^3/2 = 27783 √(3/8π)

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