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Rolling Regular Polygons around a Circle:

**(2) Polygonal Epitrochoid** (new!)

*Last edited by benice (2011-11-27 22:14:22)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,719

Hi benice;

Good use of geogebra!

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,613

hi benice,

That's real mathematical beauty. Excellent!

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,719

Hi benice;

Those are really cool! Here is my favorite:

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

When a corner is pivoting, all is easy, however, when the edge of the polygon is rolling of the circle, things get harder, in my "at a glance" opinion. Consider rolling along a flat edge instead of a circle, then the edge rolling doesn't happen.

**igloo** **myrtilles** **fourmis**

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