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The ball used in table tennis has a diameter of d = 40 mm. Some time ago it was 38 mm. 40mm=4cm, 4cm/(2.54cm/in)=1.575 (rounded) inches
your ping yourself with this addr
none they are round.Spheres do not have edges.none because its round
You need a good set of ping pong table plans that will tell you how to build a ping pong table.
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