Answer
-48$^{\circ}$
Work Step by Step
$\frac{-4\pi}{15} \times \frac{180}{\pi} = -48^{\circ}$
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.