I need help finding the area of the sector GPH?I also have to type a exact answer in terms of pi

Let us first change the 80° to radians.
[tex]\text{rad}=80\cdot\frac{\pi}{180}=\frac{4\pi}{9}[/tex]so we get that the area is
[tex]\frac{2}{9}\pi\cdot12^2=144\cdot\frac{2}{9}\pi=32\pi[/tex]so the area is 32pi square yards