In triangle ABC above, angle A is 60° and triangle ABC is equilateral. The length of AB is 3, and D is the midpoint of AC. What is the length of BC?
Choices:
A.3*\sqrt{3}
B.4*\sqrt{2}
C.4*\sqrt{3}
D.6*\sqrt{2}
E.5*\sqrt{3}
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: In triangle ABC above, angle A is 60° and triangle ABC is equilateral. The length of AB is 3, and D is the midpoint of AC. What is the length of BC?
Choices:
A.3*\sqrt{3}
B.4*\sqrt{2}
C.4*\sqrt{3}
D.6*\sqrt{2}
E.5*\sqrt{3}
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 triangle ABC above, angle A is 60° and triangle ABC is equilateral. The length of AB is 3, and D is the midpoint of AC. What is the length of BC?
Choices:
A.3*\sqrt{3}
B.4*\sqrt{2}
C.4*\sqrt{3}
D.6*\sqrt{2}
E.5*\sqrt{3}