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Re:2150有想法么？假如用dV=Sdr算

Posted by uni at 2005-04-29 12:38:25 on Problem 2409
In Reply To:2150有想法么？假如用dV=Sdr算 Posted by:frkstyc at 2005-04-29 12:36:38

这题很简单，但我就是WA
用面积投影公式。S’=S*SIN（A）

Followed by:

cosA吧？A是二面角 (0) frkstyc 2005-04-29 12:40:43
- Re:cosA吧？A是二面角 (9) uni 2005-04-29 12:41:36
  - Re:cosA吧？A是二面角 (40) uni 2005-04-29 12:42:30
    - Re:cosA吧？A是二面角 (74) frkstyc 2005-04-29 12:45:41
      - Re:cosA吧？A是二面角 (33) uni 2005-04-29 13:14:13
        Re:cosA吧？A是二面角 (16) frkstyc 2005-04-29 13:15:17

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