Answer:
Volume of balloon = 1000 cm^3
Explanation:
The head of a normal person can be assumed as a sphere with radius 10 cm.
Volume of sphere [tex]=\frac{4}{3} \pi r^3[/tex], where r is the radius.
We have approximate radius = 10 cm.
Approximate volume of head [tex]=\frac{4}{3} \pi r^3=\frac{4}{3} *\pi* 10^3=4188cm^3[/tex]
In the given options the closest value to the approximate volume is 1000 cm^3.
So, volume of head = Volume of balloon = 1000 cm^3
