If the width of a cuboid is increased by 3cm, the area will be increased by 27cc. At this time, the figure is just a square

If the width of a cuboid is increased by 3cm, the area will be increased by 27cc. At this time, the figure is just a square

Length = 27 △ 3 = 9 cm
Width = 9-3 = 6cm
Original area = 9 × 6 = 54 square centimeter