Here is a simple question, please help the basic concept
http://www.sendspace.com/file/ayevu0
Simon YAU
A simple question
2011-03-25 8:29 pm
回答 (1)
2011-03-25 9:57 pm
✔ 最佳答案
圖片參考：http://imgcld.yimg.com/8/n/HA00707756/o/701103250036513873394800.jpg
唔好比DC//AB 攪亂….同佢無關，三角形面積 = 底x高 /2
Area CDE/ Area ADE = 1/3=> [(0.5)(DF)(CE)] / [(0.5)(DF)(AE)] =1/3=> CE/AE = 1/3
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原文連結 [永久失效]:
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