As shown in the figure, given the angle of circumference angle BAC = 40.0, then the degree of the central angle angle BOC is ()
Choices:
A:40°
B:60°
C:80°
D:100°
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, given the angle of circumference angle BAC = 40.0, then the degree of the central angle angle BOC is ()
Choices:
A:40°
B:60°
C:80°
D:100°
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: As shown in the figure, given the angle of circumference angle BAC = 40.0, then the degree of the central angle angle BOC is ()
Choices:
A:40°
B:60°
C:80°
D:100°