如图,在
中,
.
![](https://img.xkw.com/dksih/QBM/2021/5/26/2729523208101888/2740904063696896/STEM/440a514d-1c97-4f43-b3de-101315842a45.png?resizew=181)
(1)在平面内求作点D,使D到直线
、
的距离相等,且
,请用直尺和圆规作出符合条件的点D(保留作图痕迹,不需写出作法);
(2)在(1)的条件下,求以A、B、C、D为顶点构成的四边形的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98ae03fdb88feb315a4ab77407f774d.png)
![](https://img.xkw.com/dksih/QBM/2021/5/26/2729523208101888/2740904063696896/STEM/440a514d-1c97-4f43-b3de-101315842a45.png?resizew=181)
(1)在平面内求作点D,使D到
![](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/7305de9211785b826823153897b17517.png)
(2)在(1)的条件下,求以A、B、C、D为顶点构成的四边形的周长.
2021·江苏泰州·二模 查看更多[3]
2021年江苏省泰州市姜堰区九年级下学期第二次学情调查(二模)数学试题(已下线)(重庆卷)2022年中考数学第一次模拟考试重庆市忠县花桥镇中学2021-2022学年九年级下学期第一次月考数学试题(一模)
更新时间:2021-06-11 21:26:30
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