如图,在△ABC中,∠ACB=90°,∠A=30°,AB的垂直平分线分别交AB和AC于点D,E,连接CD.
![](https://img.xkw.com/dksih/QBM/2023/11/23/3374244730060800/3374974828216320/STEM/060b1a9ea6c84e48a8593e669385859e.png?resizew=108)
(1)求证:△BCD是等边三角形;
(2)若AE=2,求CE的长.
![](https://img.xkw.com/dksih/QBM/2023/11/23/3374244730060800/3374974828216320/STEM/060b1a9ea6c84e48a8593e669385859e.png?resizew=108)
(1)求证:△BCD是等边三角形;
(2)若AE=2,求CE的长.
2023九年级·全国·专题练习 查看更多[1]
(已下线)XDRzkgssxtzxl931
更新时间:2023-12-19 21:37:22
|
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】如图,在
中,
,
的垂直平分线
交
于点
,交
于点
.
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c5840e0454fdec7d2158072c43b8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e142544a6d4e6851096afbd3cbad2fe2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/ce6d93cc-8dfb-4bfd-9590-0050a6e15171.png?resizew=132)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】如图,在△ABC中,
![](https://img.xkw.com/dksih/QBM/2022/1/24/2901403776499712/2901424985833472/STEM/c790949a-bbac-43f8-9269-0fd87c2c4551.png?resizew=118)
(1)尺规作图:作边AC的垂直平分线,交AB于点D,交AC于点E,连结CD.
(2)若△BCD的周长等于18,AE=4,求△ABC的周长.
![](https://img.xkw.com/dksih/QBM/2022/1/24/2901403776499712/2901424985833472/STEM/c790949a-bbac-43f8-9269-0fd87c2c4551.png?resizew=118)
(1)尺规作图:作边AC的垂直平分线,交AB于点D,交AC于点E,连结CD.
(2)若△BCD的周长等于18,AE=4,求△ABC的周长.
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
名校
【推荐1】如图,在等边
中,点P在
内,点Q在
外,B,P,Q三点在一条直线上,且
,
,问
是什么形状的三角形?试证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d824f4922edf86dbc5c39764241e20fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cdc346d78b31a196d99e910b39469e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】如图,点
,
在线段
上,
,
于点
,
于点
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/0a349257-4870-4cba-bd30-eb0358439b91.png?resizew=208)
(1)求证:
;
(2)若
,试判断
的形状并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e6363330b33ca9feda927e6ffd3088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e2c2b4ecbbd7084dc5327d74cd6740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324aae9536a57bcaf320795715f20b75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c244edbf77fbb8e9c017515e370c5c8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/0a349257-4870-4cba-bd30-eb0358439b91.png?resizew=208)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c10ef52c84726a0a1e9a11c660f921.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bce074d029fd48029eb7275dda15fe8.png)
您最近一年使用:0次