如图,正方形
中,
、
分别是
、
边上的点,将四边形
沿直线
翻折,使得点
、
分别落在点
、
处,且点
恰好为线段
的中点,
交
于点
,作
于点
,交
于点
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7330af1eaa4fbb442ebc7b47be6b6d7a.png)
________ .
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19-20八年级下·重庆沙坪坝·期末 查看更多[6]
重庆市沙坪坝区第一中学校2019-2020学年八年级下学期期末数学试题(已下线)专题27.29 相似三角形折叠问题(巩固篇)(专项练习)-2021-2022学年九年级数学下册基础知识专项讲练(人教版)(已下线)第04讲 倍长中线模型构造全等三角形-【多题一解&一题多解】冲刺2023年中考数学满分应对方法与策略(全国通用)四川省成都市青羊区成都市泡桐树中学2023-2024学年九年级上学期12月月考数学试题2023年四川省成都市武侯区西川实验学校中考数学模拟预测题(3月份)(已下线)湖南省长沙市麓山外国语实验中学2023-2024学年九年级下学期月考数学试题
更新时间:2024-05-23 18:38:25
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【推荐1】如图,△ABC是一个边长为1的等边三角形,BB1是△ABC的高,B1B2是△ABB1的高,B2B3是△AB1B2的高,……Bn-1Bn是△ABn-2Bn-1的高,则B4B5的长是________ ,猜想Bn-1Bn的长是________ .
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【推荐1】在边长为4的正方形ABCD中,点E在AB边上,点N在AD边上,点M为BC中点,连接DE、MN、BN,若DE=MN,cos∠AED=
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