P and Q are center of two circles with radii 9 cm and 2 cm respectivel – McqOptions

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1.	P and Q are center of two circles with radii 9 cm and 2 cm respectively, where PQ = 17 cm, R is the center of another circle of radius x cm, which touches each of the above two circles externally. If PRQ = 90 , then the value of x is
A.	7 cm
B.	8 cm
C.	4 cm
D.	6 cm
Answer» E.

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