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Math Help - Volume of function rotated around a line (non-axis)

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    RAz
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    Unhappy Volume of function rotated around a line (non-axis)

    I am having a big problem trying to find the volume of a function by wrapping it around a line - as opposed to the usual way of wrapping it around the x or y axis.

    Say I have f(x)=x^2 and I want to find the volume between a=0 and b=2 if I wrap it around a line y=2x. How would I do it?
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    RAz
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    So no one knows?
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