PREMIÈRE SOLUTION

Calcul de G.

C = iSo*» — (A -*- B) = io5*8'3',4.

Calcul de c.

a sin G

SIQ A

log c = log a -t- log sin G — log sin A log a = 4,8181771

log sin 6 = 7,9846698 — log sin A = o,3i63oo6

log 0 = 5,1191475 c= i3i567",io

Calcul de S.

g 6c sin A

logS=log 6-f-logc-f-Iog sîn— log a log 6 = 4,9914281 log 0 = 5,1191475

log sin A = 7,6836994

— log 2 = 7,6989700

log S = 9,4933450 S = 3 1 1 3472000*'. '