Answer:
∠ DAB = 133°
Step-by-step explanation:
In a parallelogram ABCD, the opposite angles are equal. That means ∠ A = ∠ C and ∠ B = ∠ D.
Now, it is given that ∠ D = 3x + 17 and ∠ B = 5x - 3
So, 3x + 17 = 5x - 3
⇒ 2x = 20
⇒ x = 10
Therefore, ∠ B = 5x - 3 = 50 - 3 = 47°
Now, we know that in a parallelogram the adjacent angles are supplementary i.e. ∠ A + ∠ B = 180°
⇒ ∠ A = 180 - ∠ B = 180° - 47° = 133°
Therefore, ∠ DAB = 133° (Answer)
