Centroids of regular-shaped areas
Shape |
Figure |
Area |
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Square |
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Rectangle |
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Circle |
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Triangle |
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Second & Polar moments of area of regular-shaped areas
Shape |
Figure |
Ixx |
Iyy |
J=Ixx+Iyy |
Square |
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Rectangle |
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Circle |
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Triangle |
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http://en.wikipedia.org/wiki/List_of_area_moments_of_inertia