Answer:
x ≈ 11.47
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos55° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{20}[/tex] ( multiply both sides by 20 )
20 × cos55° = x , then
x ≈ 11.47 ( to the nearest hundredth )
