我第16題唔識做啊!!!請幫忙!!!thx><
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application of......
2008-03-04 5:47 am
回答 (1)
2008-03-04 5:53 am
✔ 最佳答案
CA = 70 cos 20∘(25 + CA)/ CQ = cos 40∘
CQ = (25 + 70 cos 20∘)/cos 40∘
= 118.5m
2008-03-03 21:54:23 補充：
∘ = degree
收錄日期: 2021-04-13 15:14:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080303000051KK02962