SAT Question 11301fb6: Circles answer and explanation with Desmos solution

Choice B is correct. Since $\pi$ radians $=$

$180^{\circ }$, the measure of an angle, in degrees, can be found by multiplying its measure, in radians, by $\frac{180^{\circ }}{\pi }$. It’s given that the difference between the measure of angle $A$ and the measure of angle $B$ is $-\frac{5}{6}\pi$ radians. It follows that the expression $-\frac{5}{6}\pi \cdot \frac{180^{\circ }}{\pi }$ shows the difference between the measure of angle $A$ and the measure of angle $B$, in degrees.