perplexus.info :: Geometry : A flat ball?

A flat ball? (Posted on 2004-04-08)

Soccer balls are usually covered with a design based on regular pentagons and hexagons.

How many pentagons/hexagons MUST there be, and why?

See The Solution Submitted by Federico Kereki

Rating: 3.7500 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

So far, no cigar...

| Comment 9 of 25 |

Up to now, answers have been based on inspection, but no one gave a reason for those numbers -- if they are correct, that is!

Posted by Federico Kereki on 2004-04-09 18:51:00

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