12. Calculate the total cost of cementing the floor

Miss. Aishwarya has a circular swimming pool. In which the floor radius of 9.1\(m\) has to be cement at the rate of \(₹\)20.4 per $m^2$. Then calculate the total cost of cementing the floor? [Use $\mathrm{\pi }$\(=\) \(22/7\)]

 

The total cost of cementing the floor is \(₹\)5309.35187.95457.85058.1