The length and breadth of three rectangles are as given below : 

(a) 9 m and 6 m            (b) 17 m and 3 m             (c) 4 m and 14 m 

Which one has the largest area and which one has the smallest?

We know that, Area of the rectangle = Length × Breadth

(a) 9 m and 6 m

Area of rectangle = l × b

= 9 × 6 = 54 

Therefore, the Area of the rectangle = 54 m²

(b) 17 m and 3 m

Area of rectangle = l × b

= 17 × 3 = 51 

Therefore, the Area of the rectangle = 51 m²

(c) 

Area of rectangle = l × b

= 4 × 14 = 56

Therefore, the Area of the rectangle = 56 m²

The largest area of the rectangle is 56 m², which corresponds to (c), and the smallest area is 51 m², which corresponds to (b).