Answer:
The correct answer is option 3.
50.8°
Explanation:
Cos ∅ = Adjacent side/Hypotenuse
From the given figure we can see that it is a right angled triangle.
To find the value of x
Cos x = Adjacent side/Hypotenuse
Adjacent side =4.3
Hypotenuse = 6.8
Cos x = 4.3/6.8 = 0.6323
x = cos⁻¹ (0.6323) = 50.77 ≈ 50.8°
Therefore the correct answer is third option.
50.8°