ANSWER
[tex]120\degree\text{ each}[/tex]EXPLANATION
The polygon given is an equilateral triangle. This means that each angle inside the triangle has a measure of 60°.
The exterior angles of an angle in a polygon can be found by subtracting the interior angle from 180°.
Therefore, the exterior angles of the polygon given are:
[tex]\begin{gathered} \Rightarrow180-60=120\degree \\ \Rightarrow180-60=120\degree \\ \Rightarrow180-60=120\degree \end{gathered}[/tex]