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Mathematics 10 Online
OpenStudy (anonymous):

A geometry question

OpenStudy (anonymous):

what question?

OpenStudy (anonymous):

http://upload.wikimedia.org/wikipedia/commons/2/27/Shell-diag-1.png If the area of the shell is 4r^2pi, why is the surface of the thin slice between θ and θ + dθ \[2\pi r^2 \sin \theta d \theta\]

OpenStudy (anonymous):

From http://en.wikipedia.org/wiki/Shell_theorem#Outside_the_shell, if you're interested

OpenStudy (experimentx):

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