Answer:
104.1
Step-by-step explanation:
Use SOH CAH TOA.
Sine = Opposite / Hypotenuse
Cosine = Adjacent / Hypotenuse
Tangent = Opposite / Adjacent
In this case, the hypotenuse is x, and the side opposite of the 22° angle is 39. Since we have opposite and hypotenuse, we need to use sine.
sin 22° = 39 / x
x sin 22° = 39
x = 39 / sin 22°
x ≈ 104.1
