Issue:

How can I obtain the moments of inertia data for graphics?

Solution:

In order to have a moment of inertia properties, the graphics need to be 3D object.

If you have a planar closed graphic, it needs to be converted into a planar Region first.

You can access the moment of inertia information by clicking on ToolsInquiryRegion/Mass Properties (or using the MASSPROP command), and choosing the desired graphics.