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更新1:
(1)(2)(3)來自邊幾個三角形?
數學~~證明題目~How to prove?
2011-01-31 1:49 am
數學~~證明題目~How to prove?
圖片參考：http://imgcld.yimg.com/8/n/HA00510450/o/701101300085513873375360.jpg
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回答 (1)
2011-01-31 3:12 am
✔ 最佳答案
http://img209.imageshack.us/img209/8986/37911835.png圖片參考：http://img209.imageshack.us/img209/8986/37911835.png
2011-01-30 20:54:20 補充：
(1) FDC and DCA
(2) FBD and EDA
(3) CBA and ECD
收錄日期: 2021-04-24 10:07:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110130000051KK00855