Posted by Tori on Thursday, February 10, 2011 at 9:13pm.
A rectangle with an area of 32 inches squared has one side measuring 4 inches. A similar rectangle has an area of 288 inches squared. How long is the longer side in the larger rectangle?

geometry  helper, Thursday, February 10, 2011 at 9:24pm
Similar figures have corresponding sides, areas and perimeters in the same proportion.
32 : 288 = 4 : x
32/288 = 4/x
cross multiply
32x = 1152
x = ?