http://flypicture.com/show/40e8h
如圖...
1.b=35度
2.AB=5.7M
3.a=26度
....求x同y有幾長....
helphelp me~~~~~~
收錄日期: 2021-04-13 16:08:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081005000051KK02134