JEE Main 202124 Feb, Morning shiftMathematicsMediumCoordinate Geometry478× since 2002
If one of the diameters of the circle x² + y² - 2x - 6y + 6 = 0 is a chord of another circle 'C',
whose center is at (2, 1), then its radius is ________.
JEE Main 2021 · 24 Feb, Morning shift · Q27