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标题: 急求TT-GWD-25-10 [打印本页]

作者: zhaoyak7 时间: 2006-8-18 14:41
标题: 急求TT-GWD-25-10

Q10

The sides of a square region, measured to the

nearest centimeter, are 6 centimeters long. The

least 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

这题我觉得最大的误差应该是5.5,这样算出来的面积是 D.30.25 sq cm

而答案给出的是C,是怎么算出来的?

作者: listen2000 时间: 2006-8-19 00:02
You are right again. Next time when you encounter this kind of mistakes in answer sheet,forget about it.

作者: zhaoyak7 时间: 2006-8-19 00:46
thanks. self-confidence may be more inportant at this moment

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