Answer:
2998.4 m²
Step-by-step explanation:
Formula of sphere's volume:
V = 4πr/3
r = cincunference's radius
π = 3.14
V = 4000 m³
4πr/3 = 4000
4πr = 12000
4×3.14×r = 12000
12.56r = 12000
r ≈ 955 m
Sphere's surface area = circunference's area
A = πr²
A = 3.14×955
A ≈ 2,998.4 m²
I hope I've helped you.
