Answer:
x = 57
Step-by-step explanation:
To find the angle [tex]x[/tex], we are given these following data:
- Sum of angles of quadrilateral ABCD = 360°
- ∠CAD = ∠CBD = 90° (tangent line of a circle is perpendicular to the radius)
Therefore:
∠CAD + ∠ADB + ∠CBD + ∠ACB = 360°
90° + x° + 90° + 123° = 360°
x° = 57°
