Respuesta :
Value of x is 30°
Step-by-step explanation:
- Step 1: Find value of x by using the trigonometric ratio cosine of x. Here, given that adjacent side is 16 and hypotenuse is 18
cos x° = adjacent side/hypotenuse = 16/18 = 8/9
x° = cos inverse(8/9) = 27.12° = 30° (Rounded off to nearest ten)