Answer:
The marked exterior angle is 108°
Explanation:
The angle marked 2a is an exterior angle of this triangle.
The other two marked angles inside the triangle are called remote interior angles (because they are inside, and "remote" because they are not next to the 2a)
So, 2a = a+10 + 44
Subtract a
a = 54
The exterior angle is 2a = 2(54) = 108