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Determine the overall width of a spoil bank (to nearest \( 1 \mathrm{ft} \) ) characterized by a trapezoidal cross section, having a top width of \( 10 \mathrm{ft} \), a maximum height of \( 10 \mathrm{ft} \), and a side slope ratio of \( 2.5 \mathrm{H}: 1 \mathrm{~V} \) (see diagram).

From the above figure Top width = 10 ft