2016 AMC 10A Problems/Problem 21
Revision as of 19:02, 3 February 2016 by Math101010 (talk | contribs) (Created page with "Circles with centers <math>P, Q</math> and <math>R</math>, having radii <math>1, 2</math> and <math>3</math>, respectively, lie on the same side of line <math>l</math> and are...")
Circles with centers 
and 
, having radii 
and 
, respectively, lie on the same side of line 
and are tangent to at 
and 
, respectively, with 
between 
and . The circle with center 
is externally tangent to each of the other two circles. What is the area of triangle 
?
