如图,在等腰
中,
,
垂直平分
,交
于点D,交
于点E.若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f76e37d6e6b182896ccaaa187cfe07.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f76e37d6e6b182896ccaaa187cfe07.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/2ef4b7e3-3a08-4ca6-9164-d1e00dcdbfd9.png?resizew=268)
22-23七年级下·山东威海·期末 查看更多[3]
山东省威海市文登区2022-2023学年七年级下学期期末数学试题山东省威海市文登区五四学制2022-2023学年七年级下学期期末数学试题(已下线)第06讲 直角三角形(3类题型)-【帮课堂】2023-2024学年八年级数学上册同步学与练(浙教版)
更新时间:2023-08-12 23:18:43
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【推荐1】已知双曲线
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【推荐2】如图,在△ABC中,∠C=90°,DE垂直平分斜边AB,分别交AB,BC于点D,E,若∠CAE=∠B+30°,则∠AEC=____________________ .
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【推荐1】如图,一副直角三角板的一条边重合,将其置于平面直角坐标系中,其中
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【推荐2】如图,在
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【推荐1】如图,在平面直角坐标系
中,有一个等腰直角三角形
,
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轴上,且
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绕原点
顺时针旋转
得到等腰直角三角形
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绕原点
顺时针旋转
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