As shown in the figure, in circle A, the known chord BC = 8.0, DE = 6.0, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
Choices:
A:10
B:6
C:5
D:8
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, in circle A, the known chord BC = 8.0, DE = 6.0, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
Choices:
A:10
B:6
C:5
D:8
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, in circle A, the known chord BC = 8.0, DE = 6.0, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
Choices:
A:10
B:6
C:5
D:8