Answer:
length of rope=34.56
Explanation:
1) find the circumference of the circle (its the full circle just separated into 2 halves)
c=2
r
c=2
4
c=25.13
2) find the circumference of the smaller circle
c=2
r
c=2
3
c=18.85
divide this answer by 2 because its a semi-circle
c=9.43
3) add the 2 values together
length of rope=34.56