— 681 — 



PENTADECÁGONO REGULAR ^ 



15 (15.1) 

 15 



Pl5' 



15 



A5M= -705-2) 



/'ir.. 1-30 



V = 15 



15.1 



P 



^15 • 7 



2 (15 . 4) (15 . 7) 



15.2 



1 



15.1 



15.7 



60 



2 =30- 



60 



30 



= 60 



30 



(15 . \y 



(15.2) 



(15.1)2 



(15.2) 



(15.1)^ 

 (15.4) 



(15.1)^ 

 (15.4) 



(15. 1) (15.4) 



(15 . 2) (15 . 7)2 



(15.1) (15.4) 

 (15. 2) (15. 7)2 



(15.7) 

 (15. 4) (15.1) 

 (15.7) 



(15. 4) (15.1) 



Polígono regular de género 17. - De las fórmulas ge- 

 nerales y de las relaciones: 



(34. 1) (17.8) = (17. 1) 



(34.5) (17. 6) = (17. 5) 



(34. 9) (17. 4) = (17. 8) 



(34.13) (17. 2) = (17. 4) 



resulta: 



„ (34.3) (17. 7) = (17. 3) 

 „ (34.7) (17.5) = (17,7) 

 „ (34.11)(17.3) = (17.6) 

 „ (34. 15) (17. 1) = (17.2) 



jt7,,., = 17(17.1) 

 17 



^17. 1 



4 



(17.2) 



34 



(17.2) 



