12. Find the area of the quadrilateral

Find the area of the quadrilateral \(PQRS\), in which \(PQ\) \(=\) 15 \(m\), \(QR\) \(=\) 12 \(m\), \(RS\) \(=\) 12 \(m\), \(SP\) \(=\) 15 \(m\) and \(QS\) \(=\) 20 \(m\). (Use \(\sqrt{5} = 2.24\), \(\sqrt{11} = 3.37\)).

 

 

Area of the quadrilateral \(PQRS\) \(=\)  \(m^2\)

 

[Note: Round off your answer to two decimal places]