The radius of the circle in which the sphere `x^2+y^2+z^2+2x-2y-4z-19=0` is cut by the plane `x+2y+2z+7=0` is

The radius of the circle in which the sphere x^(I2)+y^2+z^2+2z-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is a. 2 b. 3 c. 4 d. 1

The radius of the circle in which the sphere x^(2)+y^2+z^2+2z-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is a. 2 b. 3 c. 4 d. 1

The radius of the circle in which the sphere x^(2)=y^(2)+z^(2)+2z-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is

The radius of the circle in which the sphere x^(2)+y^(2)+z^(2)+2z-2y-4z-19=0 is cut by the plane x+2y+2z+7=0 is a 2 b.3 c.4d.1

The radius of the circle of intersection of the sphere x^2 +y^2 +z^2=9 by the plane 3x +4y +5z=5 is

What is the radius of the sphere x^2+y^2+z^2-x-y-z=0 ?

The radius of the sphere x^(2)+y^(2)+z^(2)=12x+4y+3z is