Gallery, Projects and General > Neat Stuff

Todays Geometry Project .. A Regular Heptadecagon

(1/4) > >>

Bluechip:
Gentlemen ..

Draw, by Geometric Construction

A  17-Sided Regular Polygon..

OK. I'll let you watch it,  :lol:  :lol:


http://upload.wikimedia.org/wikipedia/commons/d/d1/Regular_Heptadecagon_Inscribed_in_a_Circle.gif

Cute Eh??

Yes, OK, too much  :coffee:  about time I did something useful ...

Dave BC

Rob.Wilson:
Hi Dave

You have way too much free time  :lol: :lol: :lol: :lol: :lol: :lol:

Regards Rob

Bluechip:

--- Quote from: Rob.Wilson on June 22, 2010, 06:27:06 AM ---Hi Dave

You have way too much free time  :lol: :lol: :lol: :lol: :lol: :lol:

Regards Rob

--- End quote ---

It's too soddin HOT ....

I wish it would snow again    ....  :D

Dave BC

dsquire:

--- Quote from: Bluechip on June 22, 2010, 05:56:41 AM ---Gentlemen ..

Draw, by Geometric Construction

A  17-Sided Regular Polygon..

OK. I'll let you watch it,  :lol:  :lol:


http://upload.wikimedia.org/wikipedia/commons/d/d1/Regular_Heptadecagon_Inscribed_in_a_Circle.gif

Cute Eh??





Yes, OK, too much  :coffee:  about time I did something useful ...

Dave BC

--- End quote ---

That great Dave if you only need 17 sides. I need one with 19 sides, can you help me out!  :lol: :lol:

Cheers  :beer:

Don

mklotz:
A regular n-gon can be constructed with compass and straightedge only if n is the product of a power of 2 and any number of distinct Fermat primes.

Fermat number = 2^2^n + 1

Known Fermat primes = 2,5,17,257,65537

Constructible = 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24

Not constructible = 7, 9, 11, 13, 14, 18, 19, 21, 22, 23, 25

Navigation

[0] Message Index

[#] Next page