你是說正多邊形嗎？不是的話就隻有3角形可以算，其它都是與角度有關

來源: fanmit 於 2004-11-02 07:20:10 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.