Physics · Engineering Mechanics
According to the theorem of parallel axes, which of the following equations is correct? (Where IAB = Moment of inertia of the area about an axis AB parallel to the centroidal axis, IG = Moment of inertia of the area about the centroidal axis passing through the centroid G, a = area of the section, and h = perpendicular distance between the centroidal axis and the axis passing through AB.)
- 1IG = IAB × ah2
- 2IAB = IG - ah2
- 3IAB = IG + ah2✓
- 4IG = IAB + ah2
Correct answer
IAB = IG + ah2
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