Respuesta :

musiclover10045

Using law of cosines:

Cos(angle) = adjacent/ hypotenuse


Cos(22) = 12/x

Rewrite to get:

X = 12/cos(22)

Simplify:

X = 12.9424

Round the answer as needed.

[tex]\\ \tt\Rrightarrow cos\theta=\dfrac{Base}{Hypotenuse}[/tex]

[tex]\\ \tt\Rrightarrow cos22=\dfrac{12}{x}[/tex]

[tex]\\ \tt\Rrightarrow 12=xcos22[/tex]

[tex]\\ \tt\Rrightarrow 12=0.92x[/tex]

[tex]\\ \tt\Rrightarrow x=12/0.92[/tex]

[tex]\\ \tt\Rrightarrow x=13.04[/tex]