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Let DeltaABC~DeltaQPR and (ar(DeltaABC...

Let ` DeltaABC~DeltaQPR and (ar(DeltaABC))/(ar(DeltaPQR))=9/(16)`. If AB=12 cm , BC=6 cm and AC=9 cm , then PR is equal to :

A

16 cm

B

9 cm

C

12 cm

D

8 cm

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