如图,已知
,以A、B两点为圆心,大于
的长为半径画圆弧,两弧相交于点M、N,连接
与
相交于点D,则
的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963a012f11c2bd03808016b247e99243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a9ec45721f7b4d1c99917ac0d970f.png)
A.8 | B.10 | C.11 | D.13 |
2024·黑龙江哈尔滨·二模 查看更多[3]
2024年黑龙江省阿城区中考二模数学试题(已下线)数学(海南卷)-学易金卷:2024年中考考前押题密卷(已下线)专题5.18 生活中的轴对称(全章常考核心知识点分类专题)(培优练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(北师大版)
更新时间:2024-06-02 18:06:40
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【推荐1】如图,在Rt△ABC中,∠B=90°,ED是AC的垂直平分线,交AC于点D,交BC于点E,若∠C=15°,EC=8,则△AEC的面积为( )
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