A rectangular field is 38 m 5 cm long and 21 m 5 cm wide. Find the cost of fencing on all its sides at the rate of Rs. 15.50 per metre.

Find the cost of fencing a square park of side 250 m at the rate of Rs. 20 per metre.

Find the cost of fencing a square park of side 300m at the rate of Rs.20 per metre.

Find the cost of fencing a square field of side 35m at the rate of rupees 40 per metre.

A rectangular playground is 35 m long and 15 m broad. Find the cost of fencing it at Rs. 2.50 per metre.

The area of a rectangular ground is 120 m^2 and its length is 12 mdot Find the cost of fencing the ground at the rate of Rs. 125 per metre.

Find the cost of fencing a circular garden of radius 21 m at Rs. 10 per metre.