Answer:
67°
Step-by-step explanation:
1. The final angle in the top triangle is : 70
The angles in a triangle add up to 180° so 74 + 36 = 110 and 180 - 110 = 70
2. Vertically opposite angles are equal so the angle opposite the one we just found is 70° as well
3. The angles in a triangle add up to 180° so 70 + 43 = 113 and 180 - 110 = 67
Therefore, ? = 67°
