The length increased by 3 meters, and the area increased 180. The area algorithm is length * width, that is,180/3 = 60m, which is the original width. When the width is increased by 2m, the area is increased by 180, that is to say,180/2 = 90m is the original length, the original area = original length * original width, 60 * 90 = 5400m2, and the current area = original area+180m2, that is. ~