Answer:
B
Explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
122° is an exterior angle to both triangles , then
∠ 1 + 75° = 122° ( subtract 75° from both sides )
∠ 1 = 47°
and
∠ 2 + 88° = 122° ( subtract 88° from both sides )
∠ 2 = 34°