- Re: How Many Triangles Are There?posted on 05/10/2009
我看见13个,离天才还差一步? - Re: How Many Triangles Are There?posted on 05/10/2009
I see 13 too...anyone here is 天才?天才看见几个? - Re: How Many Triangles Are There?posted on 05/10/2009
Now, I see 21, am I a genius? Wow! - Re: How Many Triangles Are There?posted on 05/11/2009
正确答案究竟是多少嘛。
粗一看,是13。在各位提示下,也看出来21了,如果一个三角形颠来倒去就可以算三个的话。
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