Answer
369 ft
Work Step by Step
$L=\frac{(\theta_{2}-\theta_{1})S^{2}}{200(h+S\tan\alpha)}=\frac{(4^{\circ}-(-3^{\circ}))336^{2}}{200(1.9+336\times\tan 1.5^{\circ})}\,ft$
$=369\,ft$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.