如圖。O為四分之一圓的圓心。角B為直角 DO=15, AO=20
求BD, AB。

如圖。O為四分之一圓的圓心。角B為直角 DO=15, AO=20
求BD, AB。

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下麵原題的所有解法這題也適用,隻不過換兩未知數
-萬斤油-
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05/08/2022 postreply
07:21:38
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好像可以任意組合,給出兩個求另外兩個。
-wxcfan123-
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05/08/2022 postreply
10:23:45
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