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OpenStudy (anonymous):
If the outer diameter of a cylindrical oil tank is 54.28 inches and the inner diameter is 48.7 inches, what is the thickness of the wall of the tank, in inches?
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OpenStudy (anonymous):
the thickness would just be the outer diameter - the inner diameter
OpenStudy (anonymous):
/2
OpenStudy (anonymous):
oh ok thanks then the answer would be 2.79
OpenStudy (anonymous):
since it goes through the outer layer twice, then yes.
OpenStudy (dumbcow):
you should probably think of it as the (outer radius - inner radius)
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OpenStudy (anonymous):
wait so do you divide by 2?
OpenStudy (dumbcow):
yes you are correct
OpenStudy (anonymous):
I'm sorry, you are correct dumbcow outer radius - inner radius
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