Hey there!!
How do we find the volume of a sphere?
Ans : We use the formula 4/3 ( πr³ )
Diameter given - 18 inches
Diameter - 2 × radius
Let's take the radius as x
2x = 18
Divide by 2 on both sides
... x = 9
Hence, the radius of the sphere is 9 in.
Now substitute these values in the formula given.
... ( 4 / 3 ) ( 3.14 × ( 9 )³ )
... ( 4 / 3 ) ( 3.14 × 729 )
... ( 4 / 3 ) ( 2289.06 )
... ( 4 ) ( 763.02 )
... 3052.08 in³
Hence, the required answer is 3052.08 in³.
Hope my answer helps!!
