将一张长方形纸片折叠,如图所示,若AB=4,BC=3,则AC的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/7483a267-c650-4d5c-b8f1-43c4f3deb8d3.png?resizew=210)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/7483a267-c650-4d5c-b8f1-43c4f3deb8d3.png?resizew=210)
A.3 | B.4 | C.5 | D.6 |
更新时间:2021-11-10 09:25:15
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【推荐1】如图,
是两条平行直线
和
被直线
所截形成的角,图中和
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】下列说法正确的是( )
A.一组数中的每一个数都增加1,则其方差不变 |
B.同旁内角相等,两直线平行 |
C.内错角相等 |
D.若a⊥c,b⊥c,则a//b |
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【推荐1】如图,已知
,
平分
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交
于点F,过点D作
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,则
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/2/51a0a1fb-3d7b-49c1-881e-93d300f9e52a.png?resizew=155)
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A.![]() | B.2 | C.![]() | D.3 |
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【推荐2】如图,
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的长度为( )
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A.1 | B.![]() | C.![]() | D.3 |
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【推荐1】如图,将正方形图案翻折一次,可以得到的图案是( )
![](https://img.xkw.com/dksih/QBM/2021/12/29/2883038774788096/2883670116057088/STEM/f0980966-51c8-4cd3-8203-6da69e851dde.png?resizew=75)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图所示,把一个正方形对折两次后沿虚线剪下,展开后所得的图形是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/2cda1f4a-a1b4-4ce7-b1ef-709cffa7c145.png?resizew=323)
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A.![]() | B.![]() | C.![]() | D.![]() |
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