如图,把一张长方形纸条ABCD沿EF折叠.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ba20b1444f524cf636961e4688ae8.png)
________ (用含
的代数式表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec73f86500a4fce4645ff0f6bf2b5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ba20b1444f524cf636961e4688ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/2023/12/29/3399837602037760/3400213811281920/STEM/90d96eb32f55489697a038684ca236f7.png?resizew=131)
23-24七年级下·全国·假期作业 查看更多[1]
(已下线)YHmlsjsxXJ758
更新时间:2023-12-30 09:35:37
|
相似题推荐
填空题
|
容易
(0.94)
名校
【推荐1】如图,平行于主光轴
的光线
和
经过凹透镜的折射后,折射光线
的反向延长线交于主光轴
上一点P.
,
,则
的度数是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f95fd176854673d22eb930f45103d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf051d10ded4899a0b714d3376daf67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a9b88ca04b543e1635036c900f7587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa70e7c9ef8b856b494d370b7d76482.png)
您最近一年使用:0次
填空题
|
容易
(0.94)
名校
【推荐2】如图,将一个宽度相等的纸条按如图所示沿AB折叠,已知
,则
=____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee4e0de0c1de0835766b7f627f348c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/2019/5/20/2207795120824320/2266549911592960/STEM/a10d3327-bb96-44ef-a2c4-e32bdb141434.png?resizew=197)
您最近一年使用:0次
填空题
|
容易
(0.94)
名校
【推荐2】在三角形ABC中,
,则
的度数为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf8367832fe4afe83c3764701b04c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
您最近一年使用:0次
填空题
|
容易
(0.94)
【推荐1】如图,平行四边形ABCD中,点E在边AD上,以BE为折痕,将△ABE向上翻折,点A正好落在边CD上的点F处,若△DEF的周长为8,△CBF的周长为18,则FC的长为_____ .
![](https://img.xkw.com/dksih/QBM/2019/3/4/2153220456767488/2160494224097280/STEM/71f84521fde24aa18d170bcd5fe1f122.png?resizew=196)
您最近一年使用:0次