三角形的三个顶点是
,
,
,求BC边上的高所在直线的方程?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd74a2f7eebdbcb3eb206093e36ab82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd06f8a91025220ddc7c5b1be3627bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c04040d3c923915db0c38461e8e303c.png)
21-22高二上·河北沧州·阶段练习 查看更多[2]
更新时间:2021-12-23 20:30:12
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相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】经过点
,
的直线的倾斜角为
,若点
在线段AB的中垂线上,求m,n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7644daed7441dc50b296de6fea56120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3537b3b921a0b108fe4fd29a46ae8f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cde7aace5b888a1a1c26fb911e2f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2844933754f174eeb835b53f7670775.png)
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【推荐2】已知
中,
,点B位于第四象限.
![](https://img.xkw.com/dksih/QBM/2021/12/9/2868672375586816/2868993859837952/STEM/91e68c1b-36e5-4fa9-a4c0-bf50fc7e3fc5.png?resizew=260)
(1)求直线
的方程;
(2)若_________时,求点B的坐标.(从下面三个条件中任选一个,补充在问题中并作答)
①
是等边三角形;
②过点
垂直于
的直线分别交坐标轴于M,N两点,且
,
;
③点
,且
的面积为
.注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b4db0da42c6da5a21f04a6568b5a70.png)
![](https://img.xkw.com/dksih/QBM/2021/12/9/2868672375586816/2868993859837952/STEM/91e68c1b-36e5-4fa9-a4c0-bf50fc7e3fc5.png?resizew=260)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若_________时,求点B的坐标.(从下面三个条件中任选一个,补充在问题中并作答)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62115028272cf8109572aa1dc1370c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9948a4eeae82dd50df79cf3c746adf31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d9a9ae0c070174d870d40a24c85be4.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7d4ba9fe6db335ab4c114799000751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知
的顶点
,
边上的中线
所在直线方程为
,
边上的高
所在直线方程为
.
(1)求
边所在直线方程;
(2)求过顶点
且与
平行的直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644938a46c31856de394bfb8dd720ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e883f81c66ceef54d2d0556a68ed585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff2e6e1d26767551d6c0d535a8d06d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1358e073cf900f149bd755b853fd6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49992bb4517a5c152f5f7e8a351f7e3d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
(2)求过顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1358e073cf900f149bd755b853fd6f7.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知
的顶点
,
,
.
(1)求
边的高线所在直线的一般式方程;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42952b85622c1c5e461905c3278eee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f3cd3027a533dd07220f161c958602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d563e1fcd5af55a3d5aa96f1eb54fa25.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次