# Only reals accepted ; )

Geometry Level 4

$$P(3 , 1)$$ , $$Q(6 , 5)$$ and $$R(x,y)$$ are three points such that $$\angle PRQ=90^\circ$$. Also, area of $$\triangle PQR$$ is $$7 \text{ units}^2$$. Find the number of points $$R$$ possible.

Note: Only real values of $$x,y$$ accepted.

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