34 



Rob. Thalen, 



Deuxieme Experience: Mesures des angles a et $ a la hauteur 



= 69,3 c " ra - 



/3 



180° 

 150 

 120 

 90 

 60 

 30 

 







180° 



150 



120 



90 

 60 

 30 

 



L ANGLE 



a 



observe 



L ANGLE 



a 



calcule 



DIFFE- 

 RENCE. 



r = 30° 



64°.28\: 

 59 .11 .3 

 49 .56 .o 

 42 .32,6 

 37 .43 .2 

 35 . 4.4 

 34 .16 .3 



59". 8',b 

 49 .53.7 

 42 .30.2 

 37 .42.9 

 35 . 6 .c 



+ 2'. 8 

 + 2. 3 



+ 2.4 

 + .3 

 — 1 .6 



= 60 c - 



55°.46'. 3 

 53 .23.2 

 48 .11.8 

 43 .11.5 

 39 .28.8 

 37 .12.5 

 36 .31.5 



53°.20'. 5 

 48 . 8. 3 

 43 . 5 . 3 

 39 .23.6 

 37 .13 .8 



+ 2'. 7 



+ 3.5 

 + 6 .2 

 + 5.2 

 — 1 .3 



L ANGLE 



a 



observe 



L ANGLE 



a 



calcule 



44 e - 



61°.44'. 2 

 57 .31 .7 

 49 .28.6 

 42 .42.3 

 38 . 9 .2 

 35 .33.5 

 34 .54.8 



5 7°. 2 7'. 3 

 49 .29.3 

 42 .44.5 

 38 .13.5 

 35 .42.9 



100- 



47°.44'. 4 

 47 . 9 .5 

 45 .36 .c 

 43 .45.4 

 42 . 7 .o 

 41 . 0.2 

 40 .36 .1 



47". 8'. 

 45 .35 .e 

 43 .43 .3 

 42 . 4.4 

 40 .58 .8 



/3 



150" 

 120 

 90 

 60 

 30 

 et 180 



150° 

 120 



90 



60 



30 

 et 180 



L ANGLE 

 d 



observe 



LA DISTANCE 



X 



calculee. 



MOT. 



L ANGLE 

 § 



observe 



LA DISTANCE 



X 



calculee. 



= 30 c 



r = 44 c 



8°.14'. 3 



12 .49.2 



13 . 4.6 

 10 .13.9 



5 .32.0 



I ^ () nietres 



1,29 

 1,29 

 1,29 

 1,29 

 1,30 



1,29 



met . 



7".26'.7 



11 .45.2 



12 . 9.o 

 9 .35.6 

 5 .12 .5 



2 )0 -ra6tres 



2,05 

 2,04 

 2)04 

 2,03 

 2,07 



60" 



100 c 



5".22'.i 



8 .45.6 



9 .17 .7 

 7 .30 .o 

 4 . 7 .i 



3,71 m6tres 



3,67 



3,67 



3,65 



3,65 



3,68 



3,67 



met. 



'.56'. 



.18.5 



.42., 

 . 8.o 

 .45.8 



15,68 m <H res 



15,48 

 15,46 

 15,32 

 15,38 

 15,58 



