Answer:
D
Step-by-step explanation:
using the sine ratio in the right triangle
sin20° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{11.9}{c}[/tex] ( multiply both sides by c )
c × sin20° = 11.9 ( divide both sides by sin20° )
c = [tex]\frac{11.9}{sin20}[/tex] ≈ 34.8 ( to the nearest tenth )
