Question

PLEASE HELP WILL GIVE BRAINLIEST PRECALC

Answer 1

Answer:

$270^o$  and   $450^o$

Step-by-step explanation:

Recall that $\frac{\sqrt{2} }{2}$ is a value of the function cosine for the special angles: $135^o$ and  $225^o$, then:

$\frac{x}{2} =135^o\\x=270^o\\or\\ \frac{x}{2} =225^o\\x=450^o$