The diameter of a table tennis ball is 40 millimeters. What is the approximate surface area of a table tennis ball? O 2,513 mm$^2$ O 5,027 mm$^2$ O 1,005 mm$^2$ O 1,600 mm$^2$
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Step 1: The diameter is 40 mm, so the radius is r = 40/2 = 20 mm. Show more…
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