MathematicsMedium127×since 2002Q3090Let CCC be the circle with centre at (1,1)(1, 1)(1,1) and radius === 111. If TTT is the circle centred at (0,y)(0, y)(0,y), passing through origin and touching the circle CCC externally, then the radius of TTT is equal to :A12{1 \over 2}21B14{1 \over 4}41C32{{\sqrt 3 } \over {\sqrt 2 }}23D32{{\sqrt 3 } \over 2}23Check answerSkip