求证:顺次连接
,
,
,
四点所得的四边形是梯形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51116e96f4c35d90677e91e0aa914111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b3a89898d3595ee7cdd54336c10b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3893fcd14417c75a59e44286dd6b00b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e821b775767c76f2822eb14349d2a7b6.png)
23-24高二上·全国·课后作业 查看更多[3]
更新时间:2023-09-11 16:12:41
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【知识点】 斜率公式的应用
相似题推荐
解答题-问答题
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容易
(0.94)
【推荐1】分别判断下列三点是否在同一直线上:
(1)
,
,
;
(2)
,
,
;
(3)
,
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663d94efcc8a8a4b5a3563e94eb8fbb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa8c0382d087631a601381ff001aed2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8156a557d9b963a77dfd88178789ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4e71593587f76bc6f8cdd3dc54e605.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0924ff22fff9f5639feb0ceeece80d.png)
您最近一年使用:0次
解答题-问答题
|
容易
(0.94)
【推荐2】分别判断下列各对直线的位置关系,如果相交,求出交点坐标:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e8d8bc2296c8e29c77ce33f2debfe4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3cd7148f30e7abc88957ec6482c798.png)
您最近一年使用:0次