PDF chapter test TRY NOW

\(PQR\) is an right triangle with right angled at \(Q\), \(PQ\) \(=\) 15 \(cm\) and \(QR\) \(=\) 20 \(cm\). Find the side length \(PR\).
 
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The length \(XZ\) of the triangle \(PQR\) is  \(cm\).