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kewell0401
Joined: 13 Apr 2005Posts: 2
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Posted: Wed Apr 13, 2005 8:12 pm Post subject: 圓形問題
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有一條圓既問頭想請教 A － B
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C － D 一個正方形ABCD.邊長25.在AD兩點上拉一條孤線.靠近B.使得 area ACD=25square*pie/4.在BC兩點上拉一條孤線.靠近A.使得area BCD=25square*pie/4.設兩孤線相交點為E.求area CDE
可以的話請列steps.thx
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Illusion
Frequent VisitorJoined: 19 Jan 2005Posts: 45
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Posted: Wed Apr 13, 2005 9:38 pm Post subject:
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ＣＤＥ是一個等邊三角形
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kewell0401
Joined: 13 Apr 2005Posts: 2
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Posted: Wed Apr 13, 2005 10:41 pm Post subject:
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孤線ar >””
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