Use a sector piece of paper with a central angle of 120.0 and a radius of 3.0 to roll into a cone-shaped bottomless paper cap (as shown in the picture), then the height of the paper is ()
Choices:
A:3cm
B:2√{2}cm
C:3√{2}cm
D:4√{2}cm
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: Use a sector piece of paper with a central angle of 120.0 and a radius of 3.0 to roll into a cone-shaped bottomless paper cap (as shown in the picture), then the height of the paper is ()
Choices:
A:3cm
B:2√{2}cm
C:3√{2}cm
D:4√{2}cm
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: Use a sector piece of paper with a central angle of 120.0 and a radius of 3.0 to roll into a cone-shaped bottomless paper cap (as shown in the picture), then the height of the paper is ()
Choices:
A:3cm
B:2√{2}cm
C:3√{2}cm
D:4√{2}cm