下列命题是假命题的是( )
A.等边对等角 | B.平行四边形的对角相等 |
C.夹在平行线间的平行线段相等 | D.两边分别相等的两个直角三角形全等 |
更新时间:2020-09-03 21:12:09
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【推荐1】如图,在
中,
,
,D在
上,且
,则
的长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/25/34e05d56-88ac-4ba8-9025-0c5d35907638.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf9ecf107ac5de213535652016519f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83016a74c308db74e1dade2b479a6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/768e16640897560f85eb38ed7cb6512f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/25/34e05d56-88ac-4ba8-9025-0c5d35907638.png?resizew=123)
A.2 | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,将
绕点
按逆时针方向旋转得到
若点
刚好落在
边上,且
,若
,则
旋转的角度为( )
![](https://img.xkw.com/dksih/QBM/2022/8/17/3046282284662784/3066888994275328/STEM/7f671002609544ec949b1ae9295cd371.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a896e05730e8dd3bee64a4911c33dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2022/8/17/3046282284662784/3066888994275328/STEM/7f671002609544ec949b1ae9295cd371.png?resizew=139)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在平行四边形
中,对角线
,
交于点
,
,点
是
的中点,连结
.若
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2021/8/2/2777601910767616/2784636949561344/STEM/8d9397e7-68aa-452c-bcfd-a542e385ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2021/8/2/2777601910767616/2784636949561344/STEM/8d9397e7-68aa-452c-bcfd-a542e385ad9c.png)
A.![]() | B.6 | C.8 | D.10 |
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【推荐2】如图,
中,
是
延长线上一点,
交
于点
,且
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/45a6c297-57d9-47e7-9fc4-ecb9cf30b84c.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cacb39582d65fba8f8a5364105f4bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a2dc5e4ee9de5fcd85aa4eb38a19ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3043abb5d1923e8ad7f56a0915fd09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8c6663cb8b0bf85ddeb2fe3438e5ed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/45a6c297-57d9-47e7-9fc4-ecb9cf30b84c.png?resizew=128)
A.2 | B.3 | C.4 | D.6 |
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【推荐1】下列命题:①到线段两端距离相等的点在线段的垂直平分线上;②角是轴对称图形,对称轴是角平分线;③有两个内角相等的三角形是等腰三角形;④有理数与数轴上的点是一一对应的关系;其中真命题的个数为( )
A.1 | B.2 | C.3 | D.4 |
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【推荐2】下列命题中,是假命题的是( )
A.![]() | B.对顶角相等; |
C.![]() | D.如果直线![]() ![]() ![]() |
您最近一年使用:0次