First we need to know how to convert radians to degrees
[tex]d=\text{r}\cdot\frac{180}{\pi}[/tex]where r is the measure in radians and d is the measure in degrees
for A.
r=53pi/36
[tex]d=\frac{53\pi}{36}\cdot\frac{180}{\pi}=265[/tex]the measure in degrees is 265°
for B.
r= 13pi/18
[tex]d=\frac{13\pi}{18}\cdot\frac{180}{\pi}=130[/tex]the measure in degrees is 130°
for C.
r=-7pi/20
[tex]d=-\frac{7\pi}{20}\cdot\frac{180}{\pi}=-63[/tex]the measure in degrees is -63°
for D.
r=-2pi/9
[tex]d=-\frac{2\pi}{9}\cdot\frac{180}{\pi}=-40[/tex]the measure in degrees is -40°