Answer:
Italy won the golf competition.
Step-by-step explanation:
Italy: -3 + 4 + 5 + -5 + 3 + -5 + 6 + -3 + -3
Total: -1
Russia:-4 + 5 + -6 + 4 + 4 + 6 + -3 + -3 + -5
Total: -2
The highlighted sector is exactly 3/4 of the circle area, because
is 3/4 of
which is a complete rotation.
Since you are given the radius, you can compute the area as

So, 3/4 of this area would be
squared cm.
The remaining sector, of course, is
squared cm.