A typical beach ball is about a quarter of a meter in radius. They are not all exactly the same size, so this answer is not precise.
Volume of the beach ball: 4/3*pi*radius^3
10 inches
The uncertainty in radius is approx 5.95%.
The radius is about 5 meters.
Volume in cubic cm = 4/3*pi*radius cubed
The radius of a circle is half of its diameter. If you are referring to a circle with a diameter of 90 meters, then the radius would be 45 meters. If 90 meters is already specified as the radius, then the radius is simply 90 meters.
Diameter = 2 x radius = 9 meters
If the radius is 42 meters, then you already know the radius.
1 meter
The radius is 1.25 meters.
The radius will be 8.48 meters.
The radius is 4 meters.