MathematicsMedium127×since 2002Q3139Let y=x+2,4y=3x+6y=x+2,4y=3x+6y=x+2,4y=3x+6 and 3y=4x+13y=4x+13y=4x+1 be three tangent lines to the circle (x−h)2+(y−k)2=r2(x-h)^2+(y-k)^2=r^2(x−h)2+(y−k)2=r2. Then h+kh+kh+k is equal to :A6B5 (1 + 2\sqrt22)C5D52\sqrt22Check answerSkip