A bus stop is barricaded from the remaining part of the road, by using \(51\) hollow cones made of recycled cardboard. Each cone has a base diameter of \(40 cm\) and height \( 1 m\). If the outer side of each of the cones is to be painted and the cost of painting is \(Rs.13\) per \(m^2\) , what will be the cost of painting all these cones? (Use \(π = 3.14\) and take \(\sqrt{1.04} = 1.02\))
Cost of painting: