Respuesta :

Step-by-step explanation:

[tex] \cos \: 60 \degree = \frac{x}{11} \\ \\ \therefore \: \frac{1}{2} = \frac{x}{11} \\ \\ \therefore \: x = \frac{11}{2} \\ \\ \: \: \: \: \: \: \huge \red{ \boxed{\therefore \: x = 5.5}} \\ [/tex]

Answer:

11/2

Step-by-step explanation: