302 



N i emtschik. Ober die direcle Constructions-Methode 



oder 



\gv = 



Ä (2 siD ^ — sin ^) 



V'3 Yli* — r 3 

 Aus dem Kieisvicreck a'doe findet man: 



und 



p = oa = e cos a e = e cos w 



pi = od = de cos ti' d c = de cos (60 — 10) 



p cos (00 — vi) = pi cos iv 



p (cos 60 cos w -\- sin 60 sin w) = p t cos iv 



( P\ ^3 . 



\pi — —I cos w = p — - sin w, 



daher 



tff iv = 



/'i — (> 



es ist aber 



e'd = o'a Ig w = 



P V3 ' 



2 Pi - p 



Y3 



und 



!>\ f> 



u(j — oh = ed. tg 0= 



// I 4 cos 2 — — 3 sin 3 



K n . „ k. 



V-i 



Y% Yr* — /-a 



ä r 4 ä 



:: | ga _ r a I sill |+|/4 cos 3 J 



- 3 Sllr 



<7 I 3 .«sin ',' — I 4 cos 



.> Slll- 



3 Lsin .',' ( sin .',' V 4 cos 2 - — 3 sin- '',' ) 



y 4 cos 3 - — Mii- - 



v 



4eos~ ■ osin- 



oder 



"// 



tt \ •» SU1 '.'," — » 4 < 



Lsin — ( .sin .'," -j- V 



li 1 CIO- - .» Slli- 



j cos 8 y — 3 sin 2 '" ) 



I» 



A - /l 



4 cos 2 



3sin a 



/... 



