CAYLEY 2014 Problem 8

Past Contests CAYLEY 2014
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1

In the diagram, \triangle{PQR} has \angle{RPQ}=90^\circ,PQ=10, and QR=26. The area of \triangle{PQR} is

Image

Answer Choices
A. 100
B. 120
C. 130
D. 60
E. 312