A thin wire is formed into a rectangle with an area of 24 cm2. If it is reshaped so that the 6 cm side is 2 cm longer, how will the area change?
If area is 24 cm^2 and one side is 6 cm, then the other side is 4 cm. The wire must 6 + 6 + 4 + 4 = 20 cm.
20 - 8 - 8 = 4, so remaining sides must be 2 cm each.
8 * 2 = ?