问几个数学问题，请指教，谢谢啦！

 The sides of a square region, measured to the nearest centimeter, are 6 centimeters long. Theleast possible value of the actual area of the  square region is

A.36.00 sq cm

B.35.00 sq cm

C.33.75 sq cm

D.30.25 sq cm

E.25.00 sq cm

least　ｐｏｓｓｉｂｌｅ是说嘴不可能，还是最小的可能数值啊　，我算的e or d ，但答案为什么c呢

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Q31. （这个事gwd 25中的 31提）

大家自己把几条线直线脸一下吧

                                                              e 

         b                     c

A                  D

In the figure, each side of square ABCD has length 1, the length of line

Segment CE is 1, and the length of line segment BE is equal to the length

Of line segment DE. What is the area of the triangular region BCE?

a. 1/3         b. (2^-2 )/4           c. 1/2

     d. (2^-2)/2            e. 3/4

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另外，我看到那个gwd数学讨论帖子，只有gwd 24，那个大虾可以提供以下题号对照，或者剩下的题目的讨论在哪里啊，谢谢啦！