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

The area of a circular playground is 22176 m^2 . Find the cost of fencing this ground at the rate of Rs 50 per metre.

Find the cost of fencing a rectangular park of length 175 m and breadth 125 m at the rate of ₹ 12 per metre.

A verandah of width 2.25m is constructed all along outside a room which is 5.5m long and 4m wide. Find: the cost of cementing the floor of the verandah at the rate of Rs. 200 per m^2 .

The inner diameter of a circular well is 3.5 m. It is 10m deep. Find the cost of plastering this curved surface at the rate of Rs 40 per m^(2).

Mrs.Kaushik has a square plot with the measurement as shown in the figure.She wants to construct a house in the middle of the plot.A garden is developed around the house.Find the total cost of developing a garden around the house at the rate of ₹55 per m^2

Find the length of the diagonal of a square of side 12 cm.

The slant height and base diamater of a conical tomb are 25 m and 14m respectively. Find the cost of with-washing its curved surface at the rate of Rs 210 per 100 m^(2).

A cylindrical pilar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs 12.50 per m^(2).

Find the area of a square park whose perimeter is 320m.