Answer
-$195^{\circ}$
Work Step by Step
We know that-
$1$ rad = $(\frac{180}{\pi})^{\circ}$
Therefore
-$\frac{13\pi}{12}$ rad = -$(\frac{13\pi}{12}\times\frac{180}{\pi})^{\circ}$
= -$195^{\circ}$
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