Question

Which proportion could be used to find the length of side b?

Answer 1

Answer:

C

Step-by-step explanation:

Using the Sine rule in Δ ABC

Calculate the measure of ∠ C

∠ C = 180° - (64 + 85)° = 180° - 149° = 31° , then

$\frac{sin31}{9.3}$ = $\frac{sin85}{b}$ → C