Question

The diameter of a spherical balloon is 9 inches. What’s the volume of the balloon?85254339382

Answer 1

Given:

The diameter of the sphere is 9 inches.

`\text{Radius}=(diameter)/(2)=(9)/(2)\text{inches}`

The volume of the sphere is

`V=(4)/(3)\pi r^3`

Substitute r =9/2 in the formula, we get

`V=(4)/(3)*3.14*((9)/(2))^3`

`V=(4)/(3)*3.14*(9*9*9)/(2*2*2)`

`V=3.14*(3*9*9)/(2)`

`V=381.5`

`V=382in^3`

Hence the volume of the ballon is 382 cubic inches.