User:Ruitelmo
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For the last month that I am trying to get an answer to a question raised by a friend: "How is closed the ball used to play soccer!..." In the mean time I have learn interesting things as: "The traditional football's outer covering consists of 12 pentagons and 20 hexagons of leather sewn together. The ball is like the corresponding polyhedron (designated a truncated icosahedron, see picture there), except that it is more spherical, because the faces bulge due the pressure", etc, etc... But I am without answer to the question: "The 20 hexagons and the 12 pentagons swen together HOW ARE THEY CLOSED? HOW IS THE LAST ONE PUT INSIDE?...
I am thanking so much in advance if someone is in position to spend a couple of minutes to let me know the answer that I guess it is very easy!