The Solution.
Step 1:
We shall find the third angle in the triangle.
[tex]\begin{gathered} \angle C=180-(64+85)\text{ ( sum of angles in a triangle)} \\ \angle C=180-149=31^o \end{gathered}[/tex]
Step 2:
we shall determine the proportion to find side b by applying the Sine Rule.
[tex]\frac{\sin 31^o}{9.3}=\frac{\sin 85^o}{b}[/tex]
