The radius of the circle, having centre at (2,1) whose one of the chor – McqOptions

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1.	The radius of the circle, having centre at (2,1) whose one of the chord is a diameter of the circle \[{{x}^{2}}+{{y}^{2}}-2x-6y+6=0\] is[IIT Screening 2004]
A.	1
B.	2
C.	3
D.	\[\sqrt{3}\]
Answer» D. \[\sqrt{3}\]

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