Answer:
x = 110°
Explanation:
Adjacent angles sum to 180°
Thus 3 of the interior angles are
180° - 50° = 130°
180° - 110° = 70°
180° - 90° = 90°
The sum of these interior angles is
130° + 70 ° + 90° = 290°
The sum of the interior angles of a quadrilateral = 360° , then
fourth interior angle = 360° - 290° = 70°
Thus x = 180° - 70° = 110°