a-maths~!!!

👨🏻‍🏫 學術台數學

用戶7639

2008-10-04 12:51 am

http://www.photo-host.org/img/502528screenhunter_02_oct._03_16.46.gif

回答 (1)

Patrick仔

2008-10-04 10:54 pm

✔ 最佳答案

here is the solution:

圖片參考：http://img125.imageshack.us/img125/2654/tyikzl4.jpg

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