The length of the normal from origin to the plane `x +2y-2z = 9` is equal to

The length of the normal from ongin to the plane x+2y-2z=9 is equal to :

Length of the normal from origin to the plane 2x-2y-z+3=0 is

If the perpendicular distance of a point A, other than the origin from the plane x + y + z = p is equal to the distance of the plane from the origin, then the coordinates of p are

The perpendicular distance from origin to the plane 3x-2y-2z=2 is :

Find the length of the perpendicular drawn from the origin to the plane 2x \ 3y+6z+21=0.

Find the length of the perpendicular drawn from the origin to the plane 2x - 3y+6z+21=0.

Find the length of the perpendicular drawn from the origin to the plane 2x-3y+6z+21=0

Find the length of the perpendicular drawn from the origin to the plane 4x-y+7z+2=0