Respuesta :

Answer:

Therefore 'x' is equal to 65.4°

Step-by-step explanation:

In Right Angle Triangle ABC

∠ B = 90°

AC = Hypotenuse = 12

CB = Adjacent Side = 5

To Find:

∠ C = x

Solution:

In Right Angle Triangle ABC Cosine Identity we have

[tex]\cos C = \frac{\textrm{side adjacent to angle C}}{Hypotenuse}\\[/tex]

Substituting the values we get

[tex]\cos C = \dfrac{CB}{AC}=\dfrac{5}{12}[/tex]

[tex]\angle C = \cos^{-1}(0.4166)=65.37=65.4\°[/tex]

Therefore 'x' is equal to 65.4°

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