| 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 |
| Message Index |
| Next page |