A retangular in-ground pool is modeled by the prism below. The inside of the pool is 16 feet wide and 35 feet long. The pool has a
shallow end and a deep end, with a sloped floor connecting two ends. Without water, the shallow end is 9 feet long and 4.5 feet deep, and
the deep end of the pool is 12.5 feet long.

If the sloped floor has an angle of depression of 16.5 degrees, what is the depth of the pool at the deep end, to the nearest
tenth of a foot?