help a q of ps, 未在匯總找到

wanlingH · 发表于 2009-4-24 22:07:00

[attachimg]70790[/attachimg]

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

Ac)

可以麻煩幫我解一下這題嗎??

讓人匪夷所思~~

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[此贴子已经被作者于2009-4-24 22:21:16编辑过]

songlovegt · 发表于 2009-4-25 00:02:00

4*4 = 16
对角线即直径=4根号２

area = (2根号2)^2*π= 8π

james8419 · 发表于 2009-4-25 00:07:00

正方形边长为4
正方形对角线即圆直径为；4根号2，S圆=(4根号2/2)^2*π=8π，答案有问题

wanlingH · 发表于 2009-4-25 14:21:00

OH thank you!!

跟我想的一樣我也是覺得答案有問題

所属分类: GMAT考试