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If one of the diameters of the circle x^...

If one of the diameters of the circle `x^(2)+y^(2)-10x+4y+13=0` is a chord of another circle "C" ,whose center is the point of intersection of the lines `2x+3y=12` and `3x-2y=5` ,then the radius of the circle "C" is :

A

`sqrt(20)`

B

6

C

`3sqrt(2)`

D

4

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