题型:解答题
难度:0.65
引用次数:524
题号:8529982
如图,BE,CD相交于点A,
与
的平分线交于点F.
![](https://img.xkw.com/dksih/QBM/2019/8/30/2279993150586880/2280105068453888/STEM/7f1dbba06b144d33b4d804faeb8a4b16.png?resizew=169)
(1)探求
与
,
有何等量关系?
(2)当
时,x为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f06fa79d51c7ea65e036265860455c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302efd5266f7868d8c67f7bb09dc2ddd.png)
![](https://img.xkw.com/dksih/QBM/2019/8/30/2279993150586880/2280105068453888/STEM/7f1dbba06b144d33b4d804faeb8a4b16.png?resizew=169)
(1)探求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e8c257f5615d30660cef4157c6b273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8775a9c5e900f14c40614d8e6cc09ec6.png)
更新时间:2019-08-30 20:28:32
|
【知识点】 三角形的外角的定义及性质解读
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,
中,作AC边的垂直平分线MN交BC于点D,连接AD.
![](https://img.xkw.com/dksih/QBM/2021/1/7/2631199507947520/2634533174124544/STEM/9bd93b2a-7211-4871-848e-d67b50d7184c.png)
(1)依题意补全图形(保留作图痕迹,不写作法);
(2)若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2021/1/7/2631199507947520/2634533174124544/STEM/9bd93b2a-7211-4871-848e-d67b50d7184c.png)
(1)依题意补全图形(保留作图痕迹,不写作法);
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d03dc7bb044da0863b871064a6748e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,将
绕A点逆时针旋转得到
,点E恰好落在
上,若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec69d43f611d65d9b0dc642a83f12ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d02e076d58a94b85a02e24b4a534f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600f68bbb24b2f34b6f5ebca90939535.png)
您最近一年使用:0次