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A flat ball? (Posted on 2004-04-08) Difficulty: 2 of 5
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.)
The 720 degree deficit | Comment 11 of 24 |

sorry, I hit the button twice

Edited on April 9, 2004, 7:37 pm
  Posted by Larry on 2004-04-09 19:34:23

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