Coordinates of the origin are (a, b). Then, the value of ab is ___.
Coordinates of the origin are (0, 0). Therefore the value of a = 0 and b = 0. So, the value of ab is 0 × 0 = 0.
The perpendicular bisector of a line segment AB passes through the origin. If the coordinates of A are (-3, 0) then the distance of point B from the origin is ___ units.
The perpendicular bisector of a line segment AB passes through the origin and (0,1). If the coordinates of A are (-2, 0) then the distance of point B from the origin is ___ units.
The perpendicular bisector of a line segment AB passes through the origin. If the coordinates of A are (-2, 0). Find the coordinates of B.