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Lighter than water?
To get the diameter of the sphere, double the radius 
To get the radius, use a measuring tape.
If it's lighter than water, push it down. As long as you push it down the same amount both times, the results will be the same.
To get the radius, use a measuring tape.
If it's lighter than water, push it down. As long as you push it down the same amount both times, the results will be the same.
Posted by Slayer_
16th Jan
