Question

Here, radius of smaller circle, ( A C=sqrt{1^{2}+3^{2}} ) Clearly, from the figure the radius of bieger circle ( r^{2}=2^{2}+left[(2-1)^{2}+(1-3)^{2}right] )

# 1. If one of the diameters of the circle x2 + y2 - 2x -6y+6=0 is a chord to the circle with centre (2, 1), then the radius of the circle is (2004, 1M) (2) 13 (6) S2 (0)3 (2) 2 - The centre of circle inscribed in square formed by the lines

Solution