जर,  \(\Delta\;\mathrm{ABC}\sim\Delta\;\mathrm{QRP},\;\frac{\mathrm{ar}\left(\mathrm{ABC}\right)}{\mathrm{ar}\left(\mathrm{QRP}\right)}=\frac94,\mathrm{AB}=18\;\mathrm{cm}\) आणि BC = 15 सेमी, तर मग PR = ? 

1
10 सेमी
2
12 सेमी
3
\(\rm \frac{20}{3}cm\)
4
8 सेमी

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