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OpenStudy (clarence):
Is the answer to this seriously 0?! Find the area of the surface obtained by rotating the circle x^2+y^2=1 about the line y=3.
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OpenStudy (anonymous):
The surface this revolution forms is called a torus (think donut shape) |dw:1446512803082:dw| Do you think it's possible for its area to be zero?
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