标题:
Prep-PS-93
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作者:
Janet_Ge
时间:
2010-5-21 17:24
标题:
Prep-PS-93
93. 10285-!-item-!-187;#058&007154
In the figure above, a square is inscribed in a circle. If the area of the square region is 16, what is the area of the circular region?
(A) 2π
(B) 4π
(C) 6π
(D) 12π
(E) 16π
上题不会插图,就是圆里面有个内切正方形,答案是C
这题我的思路是:正方形面积是16,边长是4,那对角线是直径算出来是4倍根号2,半径是2倍根号2,那圆的面积是8π,可竟然没有这个答案
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