AMC 12A 2011 #17
Posted: Thu Feb 10, 2011 6:34 pm
Circles with radii 1, 2, and 3 are mutually externally tangent. What is the area of the triangle determined by the points of tangency?
Your connection to the competitive math/science community. (Formerly texasmath.org)
http://forum.virtualchallengemeets.com/
http://forum.virtualchallengemeets.com/viewtopic.php?f=7&t=2854