34 Math for trades stuff
[latex]\begin{equation}\begin{split} \text{total force} &= (\pi \times r^2) \times \text{ psi} \\ &= (\pi \times 3^2) \times 50 \\ &= 28.26 \times 50 \\ &= 1413 \text{ pounds}\end{split}\end{equation}[/latex]
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