Asked by prgayathri | 17th Feb, 2009, 10:46: AM

Expert Answer:

The perimeter of the circular end of radius r is 2*pie*r.

This will enable you to find the radii r and R of the smaller and th larger circular ends.

Once you have both these valuse you can put them in the formula and find the required C.S.A.


Answered by  | 17th Feb, 2009, 05:36: PM

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