Respuesta :

Hrishii

Answer:

[tex] x = \frac{7 \sqrt{2} }{2} [/tex]

Step-by-step explanation:

[tex] \cos \: 45 \degree = \frac{x}{7} \\ \\ \frac{1}{ \sqrt{2} } = \frac{x}{7} \\ \\ x = \frac{7}{ \sqrt{2} } \\ \\ x = \frac{7 \sqrt{2} }{2} [/tex]

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