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feixiaolin

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S[R]=20, side=sqrt(20)=2*sqrt(5);
S[Y1+delta-(G1-delta)]=2*delta=14-10=4;
delta=2;
S[R+(G+delta)]=20+(10+2)=32;
2*sqrt(5)*[x+2*sqrt(5)]=32
[x+2*sqrt(5)]=1.6*[2*sqrt(5)]
S{Big square}=1.6^2*20=51.2

» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©

4Â¥2014-01-06 13:38:41
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BruceG

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snail&eagle

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κɳɳ(feixiaolin´ú·¢): ½ð±Ò+8 2014-01-06 13:38:54
51µã2

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2Â¥2014-01-06 12:56:14
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κɳɳ

Ìú³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by BruceG at 2014-01-06 12:56:14
51µã2

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nbadlq

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feixiaolin: ½ð±Ò+2 2014-01-06 13:59:03
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