已知:菱形ABCD中,对角线AC与BD相交于点O,点E是BC的中点,OE=8,求AD的长.
![](https://img.xkw.com/dksih/QBM/2017/5/12/1685519028494336/1685898762592256/STEM/515269a43ffd497ebdbe721b0795f91f.png?resizew=142)
更新时间:2017-05-13 07:52:43
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解答题-作图题
|
较易
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【推荐2】如图,
是
的直径,点
在
上,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/70acfb51-d59b-4fc9-86e5-c5b303f82a91.png?resizew=181)
(1)尺规作图:过点
作
的垂线,交劣弧
于点
,连接
(保留作图痕迹,不写作法);
(2)在(1)所作的图形中,求点
到
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/70acfb51-d59b-4fc9-86e5-c5b303f82a91.png?resizew=181)
(1)尺规作图:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)在(1)所作的图形中,求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-作图题
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较易
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【推荐1】如图,在边长为1个单位长度的小正方形组成的
的方格纸中,连接格点
得线段
.
的中点
;
(2)在图②中以线段
为一边画菱形
,使顶点
都在格点上;
(3)在图②中能画出符合条件的菱形有______个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6250504f1fd1969cae8f691ca75543c2.png)
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(2)在图②中以线段
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(3)在图②中能画出符合条件的菱形有______个.
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解答题-问答题
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【推荐2】已知在平面直角坐标系中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90eabdabb54b35d6307e070e241b4f1e.png)
(1)当
满足什么关系时,四边形
为菱形?请说明理由:
(2)若四边形
为正方形,且面积为8,求
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(1)当
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(2)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4496fe22b40bc63581998e6b7ef6783.png)
您最近一年使用:0次