This is the Answer to question 3:
change in the area is the new area is 1/9 of the original area
Let the length of the rectangle be x
Let width of rectangle be y
Area of rectangle = Length \times Width
So, area of given rectangle = xy
So, the new area is 1/9 of the original area
Hence the change in the area is the new area is 1/9 of the original area
