The closest thing to a triangle shape in a soccer field are the corner field marks and they are not technically triangles. The answer is zero.
There are many soccer fields in France
There are 6 triangles in an octagon
10 triangles
10 triangles make a decagon
3 referees are in soccer and football
27 triangles make up an Icosihenagon
There are10 on the field and one goalie .
you can make 76 different triangles on a 3x3 grid
3 triangles make up a hexagon.
11
Maximum is 22