Which of the following is the correct expression according to parallel axis theorem used for finding moment of inertia of plane figures?
Where,
'I1-1' is the moment of inertia of plane figure about an axis 1-1 which not passing through centroid of plane figure.
Ix-x is the moment of inertia of plane figure about an axis x-x passing through centroid which is parallel to axis 1-1
A is the area of considered plane figure
h is the perpendicular distance between axis 1-1 and axis x-x.
1
I1-1 = Ix-x2 + Ah2
2
I1-1 = Ix-x2 + A2h
3
I1-1 = Ix-x + A2h
4
I1-1 = Ix-x + Ah2