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Angle Q and R of a DeltaPQR are 25^(@) a...

Angle Q and R of a `DeltaPQR` are `25^(@) and 65^(@)`. Write which of the following is true

(i) `PQ^(3) + QR^(2)= RP^(2)`
(ii) `PQ^(2) + RP^(2)= QR^(2)`
(iii) `RP^(2) + QR^(2)= PQ^(2)`

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