Apiece of wire 80 cm long is cut into two pieces. one piece is 2x m long and is bent to form a rectangle of length 4x m. the other piece is bent to form a square. a.) find, in terms of x, i.) the area of the rectangle, ii.) the length of the side of the square, iii.) the area of the square b.) show that the total area y m^2, of the rectangle and the square is given by y = 17x^2 - 120x + 400