单选题 适中0.65 引用2 组卷712
将宽为1cm的长方形纸条折叠成如图所示的形状,那么折痕PQ的长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/199f5dfb-bcfc-494a-aba4-cd03f70afed7.png?resizew=116)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/199f5dfb-bcfc-494a-aba4-cd03f70afed7.png?resizew=116)
A.1cm | B.2cm | C. | D. |
15-16九年级上·江苏·阶段练习
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如图,四边形纸片ABCD满足AD
BC,AD<BC,AB⊥BC,AD=5,BC=11,现将纸片的四个角向四边形内部进行折叠,得到的四边形EFGH为正方形,则AB,CD的长分别为( )
![](https://img.xkw.com/dksih/QBM/2022/1/10/2897741352345600/2944772677238784/STEM/27225f41-4393-4b6d-8c70-04c670925232.png?resizew=170)
![](https://img.xkw.com/dksih/QBM/2022/1/10/2897741352345600/2944772677238784/STEM/27225f41-4393-4b6d-8c70-04c670925232.png?resizew=170)
A.AB=5,CD=7 | B.AB=8,CD=10 |
C.AB=6,CD=8 | D.AB=8,CD=9 |
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