已知P、Q为线段AB上的两点,AB=26cm,AP=14cm,PQ=13cm,求BQ

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查看11 | 回复3 | 2011-7-22 02:19:19 | 显示全部楼层 |阅读模式
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千问 | 2011-7-22 02:19:19 | 显示全部楼层
P、Q为线段AB上的两点BP=AB-AP=12cm<13cm所以Q在AP之间BQ=BP+PQ=25cm...
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千问 | 2011-7-22 02:19:19 | 显示全部楼层
25...
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