In the figure above, points A and B lie on the circle with center O. If x = 80, what is the value of z?
Choices:
A.80
B.60
C.50
D.40
E.10
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: In the figure above, points A and B lie on the circle with center O. If x = 80, what is the value of z?
Choices:
A.80
B.60
C.50
D.40
E.10
Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
Question: In the figure above, points A and B lie on the circle with center O. If x = 80, what is the value of z?
Choices:
A.80
B.60
C.50
D.40
E.10