Ahello me again . I get 105°
since ∠A = 50° then ∠DAB = 25°
since ∠B = 100° then ∠ DBA = 50°
the sum of the angles in triangle ADB = 180°
thus ∠ADB = 180 - (25 + 50 ) 180 - 75 = 105°
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