请补全证明过程及推理依据:如图,B、E 分别是AC、DF上的点,∠A+∠ABF=180°,∠A=∠F.求证:∠C=∠D
![](https://img.xkw.com/dksih/QBM/2021/7/15/2764705468514304/2816916411891712/STEM/6af33e4d6dba4742814c4927829a31e4.png?resizew=136)
证明:因为∠A+∠ABF=180°( ),所以AE//BF( ),
所以∠A= ( ),又因为∠A=∠F( )
所以∠_ =∠ ( ),
所以 // ( )
所以∠C=∠D( )
![](https://img.xkw.com/dksih/QBM/2021/7/15/2764705468514304/2816916411891712/STEM/6af33e4d6dba4742814c4927829a31e4.png?resizew=136)
证明:因为∠A+∠ABF=180°( ),所以AE//BF( ),
所以∠A= ( ),又因为∠A=∠F( )
所以∠_ =∠ ( ),
所以 // ( )
所以∠C=∠D( )
更新时间:2021-09-27 06:54:01
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解答题-证明题
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适中
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【推荐2】探究学习:
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(等量代换)
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阅读下面的解答过程,并填上适当的理由,
解:过点E作
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又∵
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∴
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如图②,直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf83f97ee9715bb2f87e0e4b4ddfc1d.png)
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(3)方法与实践:
如图③,直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
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