在
中,
,
的垂直平分线交
于点M,交
于点N,若
,
.求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336bcfc32f490a5ff36d4c574999d9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de752670a29337d90da0d2e071db472.png)
更新时间:2024-05-22 00:47:58
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,
中,
,AD是中线
(1)尺规作图:作出边AB的垂直平分线l分别交AB,AD,AC于点E,P,F;(保留作图痕迹,不写作法)
(2)根据(1)中完成的图形,连接PC,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
(1)尺规作图:作出边AB的垂直平分线l分别交AB,AD,AC于点E,P,F;(保留作图痕迹,不写作法)
(2)根据(1)中完成的图形,连接PC,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec69d43f611d65d9b0dc642a83f12ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349f37fd3f5974c0cb23a4ca831a29bd.png)
![](https://img.xkw.com/dksih/QBM/2022/1/9/2890883347324928/2891457918377984/STEM/420ea6c4-91b7-4dc0-9448-a1829c5071e6.png?resizew=279)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,已知点A(﹣3,0),点B(0,m),直线l:x=1.直线AB与直线l交于点C,连结OC.
(1)△OBC的面积与△OAC的面积比是否是定值?如果是,请求出面积比;如果不是,请说明理由.
(2)若m=2,点T在直线l上且TA=TB,求点T的坐标.
(1)△OBC的面积与△OAC的面积比是否是定值?如果是,请求出面积比;如果不是,请说明理由.
(2)若m=2,点T在直线l上且TA=TB,求点T的坐标.
![](https://img.xkw.com/dksih/QBM/2019/6/6/2219723182800896/2221992744009728/STEM/340d71b5-4c22-4bf8-8b7e-7a59890aa830.png?resizew=244)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】在
中,
,将
在平面内绕点B顺时针旋转(旋转角不超过180°),得到
,其中点A的对应点为点D,连接
,
.
与
之间满足的等量关系,并给出证明;
(2)如图2,若点D在边
上,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96251f9c30d745c1e6e3b60977722069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe4bdc5d9e833b23a1b916c06fc1a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28971fe3e3f9d3849400e98b46fc3ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
(2)如图2,若点D在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5d7845a7ddc2bf98d82d4df8e7b4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,在
中,
,垂足为D,
.
![](https://img.xkw.com/dksih/QBM/2020/12/8/2609879505821696/2610684921380864/STEM/c5670fa3-c381-4034-82a4-9da37369e5cf.png)
(1)求
的值;
(2)过点B作
,若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4d082540a50f2b1f354bfea4614e98.png)
![](https://img.xkw.com/dksih/QBM/2020/12/8/2609879505821696/2610684921380864/STEM/c5670fa3-c381-4034-82a4-9da37369e5cf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ff5fcad35756d6bc7b2baa9068ad63.png)
(2)过点B作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ea9d3df7c2bcdf135dedd1554fb82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61601ecf8de47ed9b84ee59d65f8118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次