Math question please help
If you get this right I will mark you as a brainliest

Law of cosines:
c^2 = a^2 +b^2 - 2*a*b*cos(C)
c^2 = 80^2 + 104^2 - 2*80*104*(cos51.2)
c^2 = 6789.312
c = SQRT(6789.312)
c = 82.4 = 82 yards.
The answer is C.