Answer: 8.3 ft
Step-by-step explanation:
Here, The volume of this perfectly spherical balloon is approximately 2361.7 cubic feet.
Since, the volume of a sphere, [tex]V= \frac{4}{3} \pi r^3[/tex]
Where r is the radius of the sphere.
Here V= 2361.7 cubic feet
Therefore, [tex]2361.7=\frac{4}{3} \pi r^3[/tex]
⇒ [tex]r^3= \frac{21\times 2361.7}{88}[/tex]
⇒[tex]r= 563.5875^{1/3}=8.2601344693[/tex]≈8.3 feet
Thus, the radius of the sphere = 8.3 feet
