Answer:
B
Step-by-step explanation:
The 115° angle is adjacent to both unknown angles in the triangles, thus
unknown angles = 180° - 115° = 65°
The sum of the 3 angles in a triangle = 180°, thus
∠ 1 = 180° - (65 + 80)° = 180° - 145° = 35°
∠ 2 = 180° - (65 + 85)° = 180° - 150° = 30°
