Question 775962
He runs along the diagonal of the rectangle made by the soccer field.  This, along with two sides, creates a right triangle.  We can use the Pythagorean theorem.
 
{{{a^2 + b^2 = c^2}}} where c is the length of the diagonal (hypotenuse).
 
c^2 = 300^2 + 160^2
c^2 = 90000 + 25600
c^2 = 115600
c = 340
 
The player runs 340 ft.