Respuesta :
Answer:they change and are always equal to each other
part 2. they do not change
part 3. 1/2
i just did it on edge 2020
When AC changes, angles ABC and ADC are also changes and are equal to each other.
Inscribed angle :
An inscribed angle is an angle whose vertex is on a circle and whose sides contain chords of a circle.
This is different than the central angle, whose vertex is at the center of a circle.
From given figure, It is observed When AC changes, angles ABC and ADC are also change but equal to each other.
Learn more about the angles in circle here:
https://brainly.com/question/24375372