Answer:
∠a = 51°
∠b = 48°
∠c = 70°
Step-by-step explanation:
∠c = 180° - 110° = 70° (Angles on a straight line add up to 180°)
∠ADB = 180° - (110° + 19°) = 51° (Angles on a triangle add up to 180°)
∴ ∠a = 51° (Alternate angles are equal)
∠A = 180° - (51° + 62°) = 67° (Angles on a triangle add up to 180°)
∠CAB = 67° - 19° = 48°
∴ ∠b = 48° (Alternate angles are equal)
