题目来源
题目来源1 : The Princeton Review
正确率：68%
难度：4
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Triangle ACE is equilateral with side lengths of 8. Points B and D are the midpoints of line segments AC and CE respectively. Line segment BD is a diameter of the circle with center F. What is the area of the shaded region?
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以上解析由 考满分老师提供。
