we are given the length and width of the soccer field which is a rectangle
if we cut in diagonally, we split the rectangle into two right triangles
we are need to find the hypotenuse of the triangle
we can do this by using the pythagorean theorem.
c² = a²+b²
c= hypotenuse
c² = 80²+35²
c² = 6400+1225
c² = 7625
√c = √7625
c =87.3 yards
hope this helped!