Answer:
Option A. [tex]x=60\°[/tex]
Step-by-step explanation:
we know that
The measurement of the outer angle is the semi-difference of the arcs it encompasses
in this problem
[tex]55\°=\frac{1}{2}[170\°-x][/tex]
Solve for x
[tex]110\°=170\°-x[/tex]
[tex]x=170\°-110\°[/tex]
[tex]x=60\°[/tex]
