在数学“折向未来”的活动课上,小明用如图所示的长方形纸片
折四边形,
,点E,G分别是
边上的中点,点F,H分别是
边上的点,且
,连接
.将
,
分别沿
,
翻折,点B的对应点为点
,点D的对应点为点
,当点
落在线段
上时,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
______ cm;当点
在
内部时,连接
,若
为直角三角形,则四边形
的面积为______
.
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2023·四川成都·模拟预测 查看更多[3]
2023年四川省成都市锦江区中考二模训练数学试题(已下线)专题5.35 特殊平行四边形(全章复习与巩固)(培优篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(浙教版)(已下线)专题02矩形的性质与判定(4个知识点9种题型1个易错点中考4种考法)-【帮课堂】2023-2024学年九年级数学上册同步学与练(北师大版)
更新时间:2023-04-24 17:12:33
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