Question 1042779
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In a rectangle ABCD, 4cm by 10 cm , is rotated about its sides, first AB and then AD,  two different Size cylinders are formed. 
what is the positive difference in the volumes of these two cylinders?
http://i.imgur.com/iSMa88X.png
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<pre>
First cylinder has the radius of 10 cm and the height of 4 cm.
Its volume is {{{pi*r^2*h}}} = {{{3.14*10^2*4}}} {{{cm^3}}}.

The second cylinder has the radius of 4 cm and the height of 10 cm.
Its volume is {{{pi*r^2*h}}} = {{{3.14*4^2*10}}} {{{cm^3}}}.

Now calculate the difference.
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