RS is tangent to the given Circle.
We know that, radius from the center of the circle to the point of tangency is perpendicular to the tangent line.
So,
∠CRS = 90°
We also know that, sum of all angles inside a triangle is 180°.
So,
∠CRS + ∠CSR + ∠RCS = 180°
90° + 46° + x = 180°
136° + x = 180°
x = 180° - 136°
x = 44°
So, the value of x = 44°.
