Answer:
AB ≈ 4.69
Step-by-step explanation:
using the sine ratio in the right triangle
sinΘ = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AB}{AC}[/tex] = [tex]\frac{AB}{x}[/tex] , then
sin40° = [tex]\frac{AB}{7.3}[/tex] ( multiply both sides by 7.3 )
7.3 × sin40° = AB , then
AB ≈ 4.69 ( to 3 sf )
