Couldyou pls ans this question Couldyou pls ans this question 4. 20121 In the given figure. A ABR - A PQR. If 30 cm. AB 45 cm. AP • 72 cm. QR 42 cm. find PR. AR and BR. p Share with your friends Share 0 Avinash Garg answered this Dear Student since∆ ABR~∆PQRso -PQBA=PRRA=RQBR⇒3045=PRRA=42BRnow take 3045=42BR⇒23=42BR⇒BR=42×32=63 cmnow PRRA=23⇒3PR-2AR=0 ---(1)also PR+AR=72 -----(2)on solving (1) and (20 by elemination metod; we get5PR=144⇒PR=1445=28.8 cmfrom (2) ; we get AR=72-28.8=49.2 cm Regards 0 View Full Answer