The diameter of each bolt is given as \(0.3 \, \text{in}\).
The cross-sectional area \(A\) of a bolt can be calculated using the formula for the area of a circle:
\[ A = \pi \left(\frac{d}{2}\right)^2 \]
Substitute \(d = 0.3 \, \text{in}\):
\[ A = \pi
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