math sat 10/4 quick question - three circle and the trapezoid

CH4
Tue, 07 Oct 2008 10:42:04 +0000

Carbon2, here’s a little flaw I think that’s in your solution. How can you assume that the rectangle was a square (only squares for 45,45,90 triangle when a diagnol is employed)?
I highly doubt the rectangle was a square. In fact, if I follow your solution, I find that the base of the rectangle to be 4 and the height to be 2root3.
Of course, I might be self-defending myself since I chose 20 myself. Please correct me if i’m wrong.