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

Home > Shapes
Cutting planes with polygons (Posted on 2006-09-06) Difficulty: 3 of 5
Into how many regions can you partition the plane with m n-sided regular polygons?

For example, with two squares you can achieve up to 10 regions by choosing the right size and position of your squares.

See The Solution Submitted by JLo    
Rating: 4.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Observations | Comment 8 of 17 |

I believe that I can correctly make the following observations with the limit to which infinite polygons could said to approach.

<o:p></o:p>

Case1.

Take  ‘∞’ triangles and rotate them, equi-angularly around a central point.

<o:p></o:p>

This defines 3 regions.  There will be an annulus of width 1 unit which contains a circle of diameter 2 units.  These are enclosed in an infinite plane.

<o:p></o:p>

Case2.

Now take ‘∞‘∞’-gons and treat them similarly.  As the limit of a regular polygon with infinite sides is the circumference of a circle, there are two regions, an outer and an inner.

<o:p></o:p>

In between these extremes, the width of the annulus can be given by:

Radius * (1 – Cos[180/n]º ), n is the number of sides of the polygon in question.


  Posted by brianjn on 2006-09-07 20:05:27
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 (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information