In △PQR, m∠P = 60 degrees, m∠Q = 30 degrees, and m∠R=90 degrees. Which of the following statements about ∆PQR are true?

A: QR = sqrt3 x PR

B: QR = sqrt3/2 x PQ

C: QR = 2 x PR

D. PQ = sqrt3 x PR

E. PR = sqrt3/2 x PQ

F. PQ = 2 x PR

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