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In a parallelogram \(PQRS\) (see the diagram) \(PM\) and \(PN\) are the heights corresponding to the sides \(QR\) and \(RS\) respectively. If the area of the parallelogram is \(900 \ sq. \ cm\) and the length of \(PM\) and \(PN\) are \(20 \ cm\) and \(36 \ cm\), respectively, find the length of the sides \(QR\) and \(SR\).
![YCIND_230311_5086_TN7_measurement_12.png](https://resources.cdn.yaclass.in/fdf97a23-a1b5-4937-bdd3-378ecae24238/YCIND2303115086TN7measurement12w200.png)
Answer:
\(QR =\) \(cm\)
\(SR =\) \(cm\)