जर \( \triangle ABC \sim \triangle PQR \) आणि \( AB : PQ = 2 : 3 \), तर \( \frac{A(\triangle ABC)}{A(\triangle PQR)} \) ची किंमत काय आहे?

In the following figure \(\angle\)MNP = 90\(^\circ\), seg NQ \(\perp\) seg MP, MQ = 9, QP = 4, find NQ. 
Solve the following sub-questions (any four): In \( \triangle ABC \), \( DE \parallel BC \). If \( DB = 5.4 \, \text{cm} \), \( AD = 1.8 \, \text{cm} \), \( EC = 7.2 \, \text{cm} \), then find \( AE \). 
Study the entries in the following table and rewrite them by putting the connected items in the single row: 