Could someone pls help me and show me what to do step by step:
A diagram shows the plan of the base wich consists of a rectangle of length 2y meters and width 2x meters and a semicircle of radius x meters which is placed with one side of the rectangle as diameter. The perimeter of the base is 100 meters
A) show that the area a square meters of the base is given by A=100x-2x^2-1/2
I'm not sure if there is something wrong with the question but I just can't do it