Find the area of a quadrilateral whose sides are PQ= 15 cm, QR= 8 cm, RS= 25 cm, PS = 12 cm and LQ= 90°.

Find the area of a quadrilateral whose sides are PQ= 15 cm, QR= 8 cm, RS= 25 cm, PS = 12 cm and LQ= $90 °$ .

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