10 inches
Volume of the beach ball: 4/3*pi*radius^3
The uncertainty in radius is approx 5.95%.
The radius is about 5 meters.
Volume in cubic cm = 4/3*pi*radius cubed
Diameter = 2 x radius = 9 meters
Divide the diameter by 2 to get the radius. Then use the formula for the volume of a sphere.
If the radius is 42 meters, then you already know the radius.
The radius will be 8.48 meters.
The radius is 299.58 meters.
The radius is 1.25 meters.
1 meter