Moment of inertia of a triangle

AI Thread Summary
The discussion centers on the absence of moment of inertia values for triangles along the y-axis in most textbooks. It highlights that while triangles typically lack specified values, any shape theoretically has a second moment of inertia about any axis. Participants suggest that the y-axis is arbitrary and request illustrations for clarity. The conversation emphasizes the need for better representation of triangular shapes in educational materials. Understanding moment of inertia for various axes is crucial for applications in engineering and physics.
jayborre
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Guys,

In most books, why is it that triangles doesn't have moment inertia along the y-axis as well as the centroidal moment of inertia along the y-axis.

Thank you and GOD bless

Regards,
Jay
 
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y-axis is kind of arbitrary, can you provide an illustration or anything? In theory, any shape has a Second Moment of Inertia about any axis.
 
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