Answer:
x=28.65
Step-by-step explanation:
2π+x=180
π+x=90
x=90/π
x is about 28.65
Exact Form:
[tex]x=180-2\pi[/tex]
OR
Decimal Form:
[tex]x=173.71681469...[/tex]
Step-By-Step on how to solve it is in the attached picture.
Hope this helps! :)
