Answer:
Option B [tex]\frac{1}{2}(110\°+20\°)[/tex]
Step-by-step explanation:
we know that
The measure of the interior angle is the semisum of the arcs comprising it and its opposite.
so
In this problem
[tex]m<ABC=\frac{1}{2}(arc\ AC+arc\ DE)[/tex]
substitute the values
[tex]m<ABC=\frac{1}{2}(110\°+20\°)[/tex]
[tex]m<ABC=65\°[/tex]
