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标题: How many poles? [打印本页]

作者: ob    时间: 2004-11-4 22:53
标题: How many poles?

A farmer built a fence around his 25 cows in a square region. He built it in such a way that one can see 5 poles from either of the four sides. www.ddhw.com

What are the minimum number of poles the farmer must have used?

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作者: sean9991    时间: 2004-11-5 18:22
标题: answer

16
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作者: ob    时间: 2004-11-6 00:45
标题: Right[:)]

  Right









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