3. Determine the altitude of the triangle

\(ABC\) and \(PQR\) are similar triangles. If the lengths of \(AB\) and \(PQ\) are 10 \(cm\) and 12 \(cm\), respectively. The corresponding altitude of \(\triangle ABC\) is 8 \(cm\), then the corresponding altitude of \(\triangle PQR\) is 11.610.68.69.6 \(cm\).