Second Moment of Area of a Rectangle formulas |
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\( I_{x} \;=\; 2 \cdot A \cdot \dfrac{ 6 \cdot R^2 - a^2 }{ 24 } \) \( I_{y} \;=\; 2 \cdot A \cdot \dfrac{ 6 \cdot R^2 - a^2 }{ 24 } \) |
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| Symbol | English | Metric |
| \( I \) = moment of inertia | \( in^4 \) | \( mm^4 \) |
| \( a \) = edge | \( in \) | \( mm \) |
| \( R \) = outside radius | \( in \) | \( mm \) |
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