FERMAT 2013 Problem 20

Isosceles triangle PQR has PQ=PR and QR=300. Point S is on PQ and T is on PR so that ST is perpendicular to PR,ST=120,TR=271, and QS=221. The area of quadrilateral STRQ is

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Answer Choices
A. 21\:275
B. 40\:605
C. 46\:860
D. 54\:000
E. 54\:603