14. Determine the cost of painting the frustum part of the lamp

The top part of the table lamp is in the shape of a frustum of a cone. If the radii of circular bases are 12 $cm$ and 4 $cm$, and the height is 10 $cm$, find the cost of painting the frustum part of the lamp, including the top part if $1$ sq. cm $= ₹0.50$.

 

 

The cost of painting the frustum part of the lamp $=$ $₹$

 

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