To Find :
The area of green shaded region in given image.
Solution :
The area of green shaded region is given by :
Area = Area of outer square - Area of inner rectangle
Area = x² - ( x - 20)×( x - 25 )
Area = x² - ( x² - 25x - 20x + 500 )
Area = 45x - 500
Hence, this is the required solution.
