18. Find the cost of laying

An engineer drafts a graph depicting the outline of a park is drawn by joining the vertices \(A (-11, 7)\), \(B (-6, -6)\), \(C (8, -2)\) and \(D (4, 7)\). He plans to lay paver blocks throughout the park. If the cost of laying the blocks is \(₹\)1150 per square foot, then find the cost of laying the blocks for the park.

 

Answer:

 

The cost of laying paver blocks \(=\) \(₹\).