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Math Help - Help finding volume of solid rotated about y-axis

  1. #1
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    Help finding volume of solid rotated about y-axis

    I'm totally confused on this one...

    Consider the solid obtained by rotating the region bounded by the given curves about the y-axis.

    y = x^2/4 (that's x squared divided by four), x = 1, y = 0

    Find the volume V of this solid.
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  2. #2
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    Do you know the formula?
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  3. #3
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    no i don't
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  4. #4
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    Quote Originally Posted by eagomes View Post
    no i don't
    Why are you working on problems that you don't know the theory behind?

    Shell Method: V=2\pi\int_{a}^{b}p(x)h(x)dx

    Where p(x) is the distance from the y axis and h(x) is the curve.
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