P & Q are centers of circles of radii 9 cm and 2 cm respectively. PQ= – InterviewSolution

1.	P & Q are centers of circles of radii 9 cm and 2 cm respectively. PQ= 17 cm. R is the center of the circle of radius x cm which touches the above circle externally. Given that angle PRQ is 90°. Write an equation in x and solve it.
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