All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Shapes
Dividing a donut (Posted on 2005-04-23) Difficulty: 3 of 5
I want to divide the surface of a donut into as many different regions as possible. The regions can be any shape, as long as they are each in one piece. Each region must touch each of the other regions (touching on a corner doesn't count). How many regions can I make?

See The Solution Submitted by Tristan    
Rating: 4.0000 (5 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): easy way to 7armando2005-05-01 12:47:33
Reply to the solution from TristanJonathan Chang2005-04-28 02:22:51
SolutionJonathan Chang2005-04-26 15:55:33
Solution - the 3rd way of approachJonathan Chang2005-04-26 15:46:10
Solution - completeJonathan Chang2005-04-26 15:38:37
Another simple way-please don't open-on processJonathan Chang2005-04-26 14:33:07
Solution is out- numerous regions by numerous cuttingsJonathan Chang2005-04-26 13:54:51
Another ReferenceRichard2005-04-26 09:06:46
re: easy way to 7Hugo2005-04-26 08:13:02
A Nice ReferenceRichard2005-04-26 01:05:07
Solution- I still have to modify the pictureJonathan Chang2005-04-25 18:03:42
Solution - completeJonathan Chang2005-04-25 17:40:16
The official solutionHugo2005-04-25 17:07:25
Solution is on process-please don't openJonathan Chang2005-04-25 14:18:00
easy way to 7armando2005-04-25 13:25:06
Numerous Solutions & Numerous Ways of CuttingsJonathan Chang2005-04-25 01:14:32
Solutionre: An idea -- solution? (don't know if maximum is achieved)Charlie2005-04-24 15:22:29
Solutionre(3): An idea -- solution? A solutionHugo2005-04-24 14:50:28
Solution?Jonathan Chang2005-04-23 23:52:30
SolutionUltra brief Solutione.g.2005-04-23 21:49:20
re(2): An idea -- solution? An ideaHugo2005-04-23 21:40:04
Hints/Tipsre: An idea -- solution? (don't know if maximum is achieved)Tristan2005-04-23 21:14:48
re(5): A seond step?Hugo2005-04-23 20:54:34
re: An idea -- solution? (don't know if maximum is achieved)Hugo2005-04-23 20:33:56
re(4): A seond step?Charlie2005-04-23 20:32:40
SolutionAn idea -- solution? (don't know if maximum is achieved)Charlie2005-04-23 20:22:59
re(3): A seond step?Hugo2005-04-23 20:21:15
re(2): A seond step?Charlie2005-04-23 19:59:50
I give the wrong solutionJonathan Chang2005-04-23 17:06:02
re: A seond step?Hugo2005-04-23 16:01:34
SolutionJonathan Chang2005-04-23 15:37:59
SolutionJonathan Chang2005-04-23 15:37:56
A seond step?Hugo2005-04-23 14:35:51
a beginningarmando2005-04-23 13:44:11
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information