Full text: Tracé des chemins de fer, routes et canaux

  
   
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Triangle GHJ (ne 9). 
log. GH = 2.3705379 d'oà GHz934"74 
log. sin. J log. sin. 47° 42’ —(9.8690152 
log. HJ — log. 240m 28 — ol 
  
compl. log. sin. G = compl. log, sin. £91 8'=/0.1207979 
log. sin. H — log. sin. 83° 05’ = 9.9968278 
  
log. GJ — 2.4983505 d’où GI==315m 03 
Triangle GJK (ne 10). 
log. GK = 2.2529116 d’ot1 GK=1'79= (2 
  
log. GJ —— log. 345» 03' —/9.1983505 
compl. log. sin.K = compl. log. sin. 76°26’=(0. 0 22901 
log. sin. J — log. sin. 33° 39 = ass 
log. sin. GH log. sin. 70» 09? — 9.9730777 
  
log. JK — 2.4837183 d’où JK304m 59 
Triangle ABG (n° 11). 
log. AG == 2.7416090 d’où AG—551m 58 
log. sin. B — log. sin. 72° 40’ =(9.9798158 
log. de la base AB — log. 405m pam 
compl.log. sin. G— compl. log. sin. 44° 30*—[0.1543382 
log. sin. A — log. sin. 69» 50' — 9.9492349 
  
log. BG — 2.7110281 d’où BG==514m 08 
Triangle BGK (n° 12). 
log. BK — 2.7009744 d’où BK—=509" 31 
log. sin, G == log. sin. 76° 10} —9.98724 74 
log. BG == log. 514" 08 Rv 
compl. log. sin. K= compl. log. sin. 83° 35'=/0.0027292 
log. sin. B zz log. sin. 90» 45! — 95392230) 
  
  
log. GK = 2.2529803 d’0oti GK==179= (5 
   
  
   
    
   
  
   
   
  
    
   
   
    
   
   
	        
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