Perpendicular axis theorem

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Subsection 7.1.2 Perpendicular axis theorem

The perpendicular axis theorem states that the moment of inertia of a planar body (plane lamina) about an axis perpendicular to its plane is equal to the sum of its moments of inertia about two other perpendicular axes lying in the plane of the body.

\begin{equation*} I_{z}=I_{x}+I_{y} \end{equation*}

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