名校
1 . 如图,正方形
被两条与边平行的线段
分割成4个小矩形,
是
与
的交点,若矩形
的面积恰好是矩形
面积的两倍,试确定
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8856a6bbd1648fef7aaa384366e9016f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/162b4b222bed44d4d18429dd76da6a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6ebde2731d7181fda21e8972c51933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896a1058dad705cc6623ab5db3c19c3b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/a9358738-d3ad-45ec-88f1-4f17bb10a35d.png?resizew=157)
您最近一年使用:0次
2017-09-02更新
|
206次组卷
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2卷引用:1998年北京市中学生数学竞赛试题