Q : 6 The slant height and base diameter of a conical tomb are 25 m and 14 m respectively. Find the cost of white-washing its curved surface at the rate of Rs 210 per .
Given, a conical tomb
The base diameter of the cone =
We know, Curved surface area of a cone
Now, Cost of whitewashing per =
Cost of whitewashing per =
Therefore, the cost of white-washing its curved surface of the tomb is