Answer:
x = 73°
Explanation:
I added a photo of my notes
An inscribed angle is equal to half the arc on which it rests
So, according to the photo I've added (knowing that a full circle forms 360 degrees) we can write an equation:
2x + 214° = 360°
2x = 360° - 214°
2x = 146° / : 2
x = 73°
I not sure if this is the right answer, though...