如图,
的对角线
,
交于点
,
平分
交
于点
,且
,
,连接
.下列结论:①
;②
;③
;④
,成立的个数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a58a622e2b1a239f2f96aa1501e9799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245c24bc367dadfa17a54f98b6552af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553a93e0b6156befa00b50bdfaef95d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97245f6fda27fcb49d88c8e33fb43526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6834ed98991d67ec2dff30f53a0aa287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e52f588a117280eba179d20d9050ab.png)
A.1个 | B.2个 | C.3个 | D.4个 |
20-21八年级下·浙江·期中 查看更多[4]
(已下线)【新东方】【2021.5.19】【SX】【初二下】【初中数学】【SX00020】内蒙古自治区鄂尔多斯市东胜区东胜区第一中学2022-2023学年八年级下学期第一次学习质量监测数学试题内蒙古自治区鄂尔多斯市伊金霍洛旗第一中学伊金霍洛分校2023-2024学年八年级下学期4月月考数学试题内蒙古自治区巴彦淖尔市临河区田家炳外国语学校2023-2024学年八年级下学期期中数学试题
更新时间:2023-04-08 20:10:17
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【推荐1】如图所示,点A,B,C,D在
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【推荐1】如图,在矩形
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【推荐2】如图,在平行四边形ABCD中,点E,F分别在AB,CD上,且AE=CF.求证:DE=BF.以下是排乱的证明过程:
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②∵四边形ABCD是平行四边形,
∴AB=CD,AB∥CD;
③∴DE=BF,
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证明步骤正确的顺序是( )
![](https://img.xkw.com/dksih/QBM/2022/3/6/2930522210533376/2946864336166912/STEM/ee0722cc-5bbe-4c8b-b00b-4b32df402476.png?resizew=260)
①∵AE=CF,∴BE=FD;
②∵四边形ABCD是平行四边形,
∴AB=CD,AB∥CD;
③∴DE=BF,
④∴四边形EBFD是平行四边形.
证明步骤正确的顺序是( )
![](https://img.xkw.com/dksih/QBM/2022/3/6/2930522210533376/2946864336166912/STEM/ee0722cc-5bbe-4c8b-b00b-4b32df402476.png?resizew=260)
A.①→②→③→④ | B.①→④→②→③ | C.②→①→④→③ | D.②→④→①→③ |
您最近一年使用:0次
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【推荐1】如图,点
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A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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名校
【推荐2】已知四边形
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