I will explain it following 'Geometrical moment of inertia-1'. The 'I' mentioned in the 'Geometrical moment of inertia - 1' is also referred to as the 'Right angle moment of inertia'. On the other hand, there is something called the 'Polar moment of inertia'. The 'Right angle moment of inertia' is based on the x, y-axis, while the 'Polar moment of inertia' is based on the z-axis. For example, as..
