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Find the area of a triangular park, two of which sides are 14 \(m\) and 18 \(m\), and the perimeter is 48 \(m\). Also, find the cost of levelling the field at a rate of \(₹\)19 per square metre? (Use \(\sqrt{5} = 2.24\))
 
Area of the triangular park \(=\)  \(m^2\)
 
Cost of levelling the park \(=\) \(₹\)
 
[Note: Round off the area up to two decimal places and round off the cost to the whole number.]