Remember this problem? The one where you had to find the area between two circles by only knowing the length of the tangent "chord" (the red line)?

That problem is solved using some (moderately) tricky geometry. But if you know that the problem is solvable, it's actually pretty easy to solve by simply using the formula for the area of the circle and a bit of logic.

Can you do it?

(In reply to Tricky by Happy)

hey Happy, just go through my solution in the similar problem "What's the Area" in "Shapes" and you will find that the same solution has been used to frame this problem. The only difference lies in the category of the problem.

Posted by Ravi Raja on 2003-03-03 17:50:14