The size of angle DAB would be =49°.
How to calculate the missing angle of the given quadrilateral?
To calculate the missing angle of the quadrilateral, the following steps should be taken as follows:
The sum of the interior angle of a quadrilateral = 360°.
Given that, angles DAB and BCD are the same size.
Therefore,
360 = 228+34+X+X
360 -262 = 2x
2x = 98
X = 98/2
= 49°
Therefore, size of angle DAB would be =49°.