2005 AIME II Problems/Problem 1
Revision as of 12:17, 5 July 2006 by Ragnarok23 (talk | contribs)
Problem
Six circles form a ring with with each circle externally tangent to two circles adjacent to it. All circles are internally tangent to a circle 
with radius 
. Let 
be the area of the region inside circle and outside of the six circles in the ring. Find 
.
