(a) Area of rectangle = length x breadth = 9 m x 6 m = 54 m2
(b) Area of rectangle = length x breadth= 3 m x 17 m = 51 m2
(c) Area of rectangle = length x breadth= 4 m x 14 m = 56 m2 Thus, the rectangle (c) has largest area, and rectangle (b) has smallest area.
Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow