I 



MEASUREMENT OF AN ARC 



Kaulikautan from Kooteapara ==■ 169427.5 Feet. 



I 



TRIANGLES. 



Observed 

 Angles. 



cS I — 





o 



ce . 







U w 













t- c. 



o 





■ O C 





£ 



-S *"■ 



t. 



' s-k 



■ w 



S 



TO 





.Angles for 

 Calculation. 





O 



49 



Kaulikautan, . 

 Kooteapara, i 

 Gopaulswamy, 



o . ft 



ii 





64 49 36.5 



— 1.11 





80 1 12.71 



— 1.5 1 



1 



35 9 13.4 

 64 49 35.4 

 80 I 11.2 



180 0. 



G, r i Kaulikautan, 



opaulswamy from < XT , * ' 

 1 J I Kooteapara, 



155691.9 

 99050.5' 



Kooteapara from Gopaulswamy = 99017.15 



5i) 



Kooteapara, 

 Gopaulswamy, .... 



Sekundermaiii, .... 



58 31 38.28 

 79 22 15.36 

 42 6 10.1 ! 



—0.88 



— 1.22 

 —0.81 







58 31 37.4 

 79 22 14.1 

 42 6 8.5 



180 3.74 



J2.91 J+0.S3J180 0. 



Sekundermalli from \ r, ' " 1 



( bopaulswam 



wamy, 



145195.8 

 125CS7.6 



The' above Base, Kooteapara from Gopaulswamy, is the mean obtained by the 47th and 49th 

 f'Friangles. 



Suddragherry from Kooteapara = 152355.8 



Suddragherry, . 

 Kooteapara, . 

 Sekundermalli, 



60 22 23.28 

 62 10 59.4 



—1.56 

 — 1.53 



57 26 40.4 

 60 22 21.7 

 '62 10 579 



51 



1 1 80 0. 



Sekundermalli from < '. " 5 a ^ ^ err ^' 

 (Kooteapara, . 



149740.7 

 145195. 



Sekundermalli from Gopaulswamy = 125997.6 



Sekundermalli, , , 

 Gopaulswamy, . 

 I Suddragherry,- . . , 



<5il 



20 4 49.8 



105 53 45.55 



54 1 28.65 



—0.31 

 — 1.15 

 —0.08 



20 ,4 49.5 



105 53 44.5 



54 \ 26. 



180 4. 



J 1.54 J + 2.46 



180 0. 



ct j j t. r £ Sekundermalli. ............ 



Suddragherry from < ^ . r .. ...... TL\l\.. 



° J £ Gopaulswamy, . 53455.! 



149741. 



(la thetwo last triangles, the distance Sekundermalli from Suddragherry will be found .common 

 jihen, by taking the mean and referring to the 29th triangle* it will appear, that there is a difference 

 jcf 4 T g- feet, in the same side Suddragherry from Sekundermalli; from whence it may be inferred,!] 

 that had the' base been computed from bringing down the triangles from the northward, it~wouirf]' 

 '' ave exceeded the measurement by 10 inches nearly 



