9. Determine the cost of tin-plating the hemispherical bowl

Radha bought a hemispherical bowl of inner diameter 17 $cm$. Determine the cost of tin-plating inside the bowl at the rate of $₹$8 per $10 \ cm^2$. $[$Use $\pi = 3.14]$

 

 

[Note: Round off the cost to the whole number]