WEBVTT
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this question asked us to find the surface area of
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the tourists in this given exercise. Okay, What
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we know is that we're going to essentially be rotating
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X squared plus y minus R squared is lower.
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Kiss our square about the X axis. Not what
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we know is the distance from the X axis to
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this point is big armistice are co sign of are
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variable. Therefore, what we know is that we're
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looking at the length of an arc given the rotation
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R d of our variable so looking from 0 to
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2 pi remember, this is a full rotation.
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We have capital are lurking in our minds lurking r
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squared And then we know we have this This essentially
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the same things d backs deep data It's the same
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idea and this is equivalent to four pi squared capital
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are lower case R