如图,在
中,点
是
延长线上的一点,
与
交于点
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/b2b66c50-ba55-49c5-b0d4-2e33ae7394e4.png?resizew=159)
(1)求证:
;
(2)若
的面积为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81986efd8301a22407e407184420ad01.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/b2b66c50-ba55-49c5-b0d4-2e33ae7394e4.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a681d7667f6d68675d70201983793519.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
更新时间:2022-11-23 15:01:44
|
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解答题-作图题
|
较易
(0.85)
名校
【推荐1】如图,在平行四边形
中,对角线
和
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/936406b8-eee9-4798-93d7-616d1df6ecd3.png?resizew=163)
(1)请用尺规完成基本作图:作出线段
的中垂线交
于点
,交
交于点
;(尺规作图保留作图痕迹,不写作法)
(2)在(1)的条件下,连接
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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(1)请用尺规完成基本作图:作出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
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解答题-证明题
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【推荐2】如图,点
分别在
的边
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![](https://img.xkw.com/dksih/QBM/2020/5/18/2465591293378560/2466039298981888/STEM/34698fc8357749f19395970160a9a869.png?resizew=201)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d5d68e6632fbd28805e0dac94602dd.png)
(2)若
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71b87dc79dbd6201e7d1df37f3a8cb3.png)
![](https://img.xkw.com/dksih/QBM/2020/5/18/2465591293378560/2466039298981888/STEM/34698fc8357749f19395970160a9a869.png?resizew=201)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d5d68e6632fbd28805e0dac94602dd.png)
(2)若
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解答题-证明题
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【推荐1】如图,在▱ABCD中,BC=2AB,点E、F分别是BC、AD的中点.求证:△ABE≌△CDF;
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您最近一年使用:0次
解答题-作图题
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较易
(0.85)
名校
【推荐1】如图,已知
,点
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一点,在
上找一点
,使
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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解答题-证明题
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要求:①分别在给出的相似三角形△ABC与△DEF中用尺规作出一组对应角的平分线,不写作法,保留作图痕迹;
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要求:①分别在给出的相似三角形△ABC与△DEF中用尺规作出一组对应角的平分线,不写作法,保留作图痕迹;
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【推荐2】如图,在
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(2)若
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您最近一年使用:0次