Answer:
e=15.8
Step-by-step explanation:
Well we use the law of cosines
e^2=11^2+6^2-2(11)(6)cos(134)
[tex]e^{2} =121+36-132cos134\\e^2=157-132cos143\\e^2=248.694....\\e=15.8[/tex]
15.8
Using Cosine rule
a² = b²+c²-2bcCos A
a = e
b = 11
c = 6
A = 134°
e² = 11²+6²-2•11•6 × Cos 134
" = 121+36 -132× -0.69466
" = 157 + 91.69512
" = 248.69512
e² = 248.6951
e = (248.6951)½
e = 15.7701
nearest tenth = 15.8
