Respuesta :

Given:

base = 16

hypotenus = 21

[tex]\cos \theta=\frac{base}{hypotenus}[/tex]

Angle = x

[tex]\begin{gathered} \cos x=\frac{16}{21} \\ \cos x=0.76 \\ x=\cos ^{-1}(0.76) \\ x\approx40 \end{gathered}[/tex]

The value of x is 40 degree.

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