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Moment of inertia of a triangle

  1. Dec 18, 2008 #1
    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
     
  2. jcsd
  3. Dec 19, 2008 #2

    minger

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    Science Advisor

    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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