Posted by dasha on Monday, April 25, 2011 at 7:37pm.
A rectangle has an area of 72 square inches. The length of the longest side is twice the length of the shortest side. What is the length of the rectangle?

math  MathMate, Monday, April 25, 2011 at 7:43pm
L=2W,
L*W=72
(2W)*W = 72
W²=72/2=36
Solve for W (width) and hence calculate length L.