When you draw three circles of radius r such that all three are externally tangent, what is the area of the shape in the center in terms of r?

(In reply to A triangle by brianjn)

Your solution is correct and your explanation is clear.  Has Justin forgotten about posting the "official" solution?  Or does he think some of the posters need more time to work it out on their own?

Posted by Mindy Rodriguez on 2005-11-22 23:57:51