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Re:前面那个是对的,你这个是内接圆

Posted by dosxp at 2008-07-09 20:38:41 on Problem 2242
In Reply To:前面那个是对的,你这个是内接圆 Posted by:waterine at 2006-11-11 10:18:52
内切圆...外接圆....

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