7. Find the area of the veranda and total cost for cementing the floor

A verandah of width 2 \(m\) is constructed along the outside of a room of length 9 \(m\) and width 4 \(m\). Find the area of the verandah and the cost of cementing the floor of the verandah at the rate of \(₹ \)16 per sq. m.

 

  

The area of the verandah is  $m^2$.

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