Perpendicular Axis Theorem

1 min read Updated Fri Apr 24 2026 03:19:45 GMT+0000 (Coordinated Universal Time)

I_{zz} = I_{xx} + I_{yy} = I_{mm} + I_{nn}

$x$ , $y$ , $z$ are a set of axes. $m$ , $n$ , $z$ are another set of axes.

If $I_{xx}$ is at maximum, $I_{yy}$ will be at minimum.