Answer:
x ≈ 13.8
Step-by-step explanation:
using the cosine ratio in the right triangle
cos37° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{11}{x}[/tex] ( multiply both sides by x )
x × cos37° = 11 ( divide both sides by cos37° )
x = [tex]\frac{11}{cos37}[/tex] ≈ 13.8 ( to the nearest tenth )
