如图,在菱形
中,点
、
分别为边
、
上的动点(都与菱形的顶点不重合),连接
、
、
.若
,且
,判断
的形状,并说明理由.
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f5c7c3c100440761a21698e595e8b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/f155e78a-4eed-4367-9b8f-24a1c49d69f9.png?resizew=260)
更新时间:2023-06-26 09:49:41
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,已知点
,
,其中
、
满足
,且分式
的值为0,将线段
绕点
顺时针旋转至
,连接
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/b1eec2a4-ce7d-40e5-abe4-bc38236722d2.png?resizew=138)
(1)直接写出点
、
的坐标;
(2)求
的度数;
(3)若
,
的平分线
交
于点
,探究线段
、
、
之间的数量关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296c31eaede57efe89ffb83f02ad4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5612d598e27ac2ce0ab89fb63538bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de4f94ef587d838b44f125e1ceb91cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4773ec2c4a96205623068b0fcb262172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/b1eec2a4-ce7d-40e5-abe4-bc38236722d2.png?resizew=138)
(1)直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79684a6e92297749c005e2b23cac9710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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解答题-证明题
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适中
(0.65)
【推荐2】阅读材料,解决问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/908bca60-0b31-4b27-b632-8ac55420803e.png?resizew=370)
(1)如图 ① 等边
内有一点P,若点P到顶点A、B、C的距离分别为5,12,13,求
的度数.为了解决本题,我们可以将
绕顶点A旋转到
处,此时
,这样就可以利用旋转变换,将三条线段
转化到一个三角形中,从而求出
;
(2)请你利用第(1)题的解答思想方法,解答下面问题,已知如图②,
中,
,E、F为
上的点且
,判断并证明线段
之间的数量关系.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/908bca60-0b31-4b27-b632-8ac55420803e.png?resizew=370)
(1)如图 ① 等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af51564ad769756ddda5ff0c7f07408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2832b4d652d9520a4f8cf4abafc32b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c7267e5313b9b00ef22c94a479fc34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a84b7de4bcbaa36f542b7ac3886bba.png)
(2)请你利用第(1)题的解答思想方法,解答下面问题,已知如图②,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e362efcfcac802f5ba14deac8dd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192155e6a3aade305b76b1eb7c75e30c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4e89584994466df06977e65b626bc4.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】如图:在菱形
中,对角线
、
交于点
,过点
作
于点
,延长
至点
,使
,连接
.
是矩形;
(2)若
,
,求菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a893fc8b2e9d55c9cdf8aceb3827a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946c16d99496d31ce4d87301a4793393.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b89a1776f9cb401705e2bdb461b93b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f951e874c46b9ee8ac55914f0ee5a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
名校
【推荐2】菱形ABCD中,∠ABC=60°,F在CA延长线上.
(2)如图2,E是BC上一点,EC=AF,求证:FE=FB;
(3)如图3,在(2)的条件下,过A作AG⊥FC交FD于点G,当BE=2,G是DF中点时,求GA的长.
(2)如图2,E是BC上一点,EC=AF,求证:FE=FB;
(3)如图3,在(2)的条件下,过A作AG⊥FC交FD于点G,当BE=2,G是DF中点时,求GA的长.
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