Find the cost of fencing a rectangular field with length 32 m and breadth 25m if the rate of fincing is ?40 per m

To find the cost of fencing a rectangular field,we have to find the perimeter
length of rectangular field= 32m
breadth of rectangular field=25m
perimeter=2(l+b)
               =2(32+25)
               =2x57
               =114m
Cost of fencing=Rs40
Total cost of fencing=Rs40x114
                                 =Rs4560.