As shown in the figure, the expanded figure of the lateral surface of a cone is a semicircle with a radius of 10.0, then the radius of its bottom is ()
Choices:
A:3
B:4
C:5
D:6
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: As shown in the figure, the expanded figure of the lateral surface of a cone is a semicircle with a radius of 10.0, then the radius of its bottom is ()
Choices:
A:3
B:4
C:5
D:6
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, the expanded figure of the lateral surface of a cone is a semicircle with a radius of 10.0, then the radius of its bottom is ()
Choices:
A:3
B:4
C:5
D:6