Question

find the missing angles or arcs.

Explanation:

Step1: Identify the triangle type

The triangle is inscribed in a circle with one side as the diameter. By Thales' theorem, a triangle inscribed in a circle where one side is the diameter is a right triangle.

Step2: Determine the angle measure

In a right triangle, the right angle is \( 90^\circ \). So the missing angle \( x \) is \( 90^\circ \).

Answer:

\( 90 \)