如图所示,直线
是
的对称轴,E,F是
上的任意两点.若
的面积为
,求图中阴影部分的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76fbc600bfdd35670f248e773463f84.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/7b0f3666-b651-40a7-a006-80cb970d8b22.png?resizew=130)
23-24八年级上·全国·课堂例题 查看更多[1]
更新时间:2024-01-20 00:25:25
|
【知识点】 根据成轴对称图形的特征进行求解解读
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,在正方形
中,
为
边上一动点(不与点
,重合),延长
到点
,连接
,使得
.
为
边一点,且
,连接
.点
关于直线
的对称点为
,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/f60d4655-4ed0-431e-922c-0790cad89471.png?resizew=124)
(1)依据题意补全图形,证明:
;
(2)延长
交
的延长线于点
,则
的形状是 ;
(3)用等式表示线段
,
与
的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ee881d84e0238e31286ac05de0f8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc180eda08edfb6d54eb04da7741f099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/f60d4655-4ed0-431e-922c-0790cad89471.png?resizew=124)
(1)依据题意补全图形,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fa592ba8afeedd84178ea0ce40c512.png)
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c2910738a61030bf8a3967abd19b60.png)
(3)用等式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图,在正方形网格上有一个
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/887111dc-f1ec-4ab2-9150-ae1bb95d1700.png?resizew=223)
(1)画出
关于直线l对称的图形
;
(2)在直线l上找一点P,使
的长最短.(不写作法,保留作图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/887111dc-f1ec-4ab2-9150-ae1bb95d1700.png?resizew=223)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)在直线l上找一点P,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
您最近一年使用:0次