Answer:
9.2
Step-by-step explanation:
Use law of sines
a/sinA = b/sinB
5/sin 31 = b/sin 108
b=9.2
AC=5.4
Cos ∅= adjacent/hypotenuse
Cos 108 = 5 / AC
0.927 × AC= 5
AC=5/0.927
AC= 5.4
