The area of a rectangular desktop is square meters. A square desktop is nine tenths of a meter long. How much more is the area of a rectangular desktop than that of a square desktop?

The area of a rectangular desktop is square meters. A square desktop is nine tenths of a meter long. How much more is the area of a rectangular desktop than that of a square desktop?

1-0.9*0.9=0.19
The area of rectangular tabletop is 0.19 square meters more than that of square tabletop