Joseph Lin wrote:
有興趣的朋有請作Exercise94-a.gif
Quiz :
1. A之長度為何?
2 B之角度為何?
Joseph Lin wrote:
抱歉!又擺一次烏龍貼錯圖檔了,已更正了請大家息怒,老朽這廂有禮了。
Joseph Lin wrote:
To:f5
此題只有唯一的答案。
原因;由41的尺寸標註線判斷《A線段和41線是垂直的》。
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