None just your basic nollage if you have one.. Follow this equation.
Measure the radius of the ball then multiply it hypodermic or 3.14.
R*R*3.13= circumference
Or measure the diameter divide it by 2 then multiply it by pie
D/2*R*R*3.14= Circumference... :~D
A cloth tape measure.
Measuring tape you can buy it at a tool store or a construction store.
It's a tool
It's a tool
measure the basketball court with a yard stick then measure fences
string
It's a tool
It's a tool
I would expect to find drawing tool
A protractor.
string
A ruler or tape measure.