Problem Solving
试题详情
题目：
An equilateral triangle that has an area of 9 3^1/2 is inscribed in a circle. What is the area of the circle?
选项:
A、6pi
B、9pi
C、12 pi
D、9pi 3^1/2
E、18pi 3^1/2
答案:
C
提问：
An equilateral triangle that has an area of 9 3^1/2 is inscribed in a circle. What is the area of the circle?
6pi
9pi
12 pi
9pi 3^1/2
18pi 3^1/2
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-1
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