SOLUTION: The diameter of a table tennis ball is 4 centimeters. How many square centimeters of plastic are needed to make a table tennis ball?

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Question 295309: The diameter of a table tennis ball is 4 centimeters. How many square centimeters of plastic are needed to make a table tennis ball?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The surface area of a sphere is given as
As=4%2Api%2AR%5E2
R=D%2F2=2
As=4%2Api%2A%282%29%5E2
As=16%2Api
in units of square centimeters.