A window frame is shown in Figure 1 below. The thickness of the frame and the struts within the frame are small compared to the other dimensions, and do not need to be accounted for separately. 0.2 h Figure 1 A window frame made up of three rectangles i. If 4 metres of frame are used to go around the outside perimeter of the window, show that: w = 2- 1.2h Explain each step of your working. ii. Show that the area of the window, A, can be expressed in terms of h by the quadratic equation: A =2.4h - 1.44h2 Explain each step of your working