GAUSS8 2000 Problem 13

Past Contests GAUSS8 GAUSS (GR. 8) - 2000
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1

The coordinates of the vertices of rectangle PQRS are given in the diagram. The area of rectangle PQRS is 120. The value of p is

Image

Answer Choices
A. 10
B. 12
C. 13
D. 14
E. 15