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On the sides BC, CA, AB of DEltaABC, p...

On the sides `BC, CA, AB` of `DEltaABC`, points `D, E, F` are taken in such a way that `(BD)/(DC)= (CE)/(EA)=(AF)/(FB)=2/1` If area of `DeltaABc` is 106.61 sq. unit then the area of triangleenclosed by the lines `AD, BE and CF` i.e. `ar(DeltaPQR)` is

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