如图,在
和
中,
,点E为
中点,
,
,点E、F关于
成轴对称,连接
.求证:
为等边三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78e297915d9058d34dff8b45a181086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962c55ad3209350c941e1cee03f631a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7b7be09862e90dd0065ec7b712e024.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/0fa20b71-0ed0-40b2-9044-2120f2ac8985.png?resizew=138)
更新时间:2023-12-09 20:47:37
|
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较易
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【推荐1】如图,将
绕点
顺时针旋转
得
,点
的对应点
恰好落在
的延长线上,连接
.AC,DE相交于点P.
(Ⅰ)求证:△ADB是等边三角形;
(Ⅱ)直接写出∠APD的度数______.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(Ⅰ)求证:△ADB是等边三角形;
(Ⅱ)直接写出∠APD的度数______.
![](https://img.xkw.com/dksih/QBM/2021/11/17/2853106572582912/2858076839919616/STEM/d415616c490d493bada6e841f3c9bbe5.png?resizew=181)
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解答题-问答题
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【推荐2】若一个三角形的三边长分别为a,b,c,且满足
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【推荐1】如图,已知AD是Rt△ABC的斜边BC上的中线,分别过点A,B作BC,AD的平行线,两直线交于点E.求证:四边形ADBE是菱形.
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解答题-证明题
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【推荐2】如图,
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(2)若
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解答题-作图题
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【推荐1】如图,在锐角
内有一定点
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解答题-问答题
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【推荐2】如图,点
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内,点
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、
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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