在
中,
,M是边
的中点,
于点H,
平分
.
(1)求证:
平分
;
(2)过点M作
的垂线交
的延长线于点E,
①求证:
;
②
是什么三角形?证明你的猜想.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed85a3f666c0736219766523c13cfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55963a9b9b02737110f57a377b41cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/15c9f2e3-bb44-41e7-b940-4069932a8786.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5d0e7069ad7dab870bc7f78afb0e01.png)
(2)过点M作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ccc2bba2ab24022ce3ad33a6709da04.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164a4df60a15587971e883cf557b5ce2.png)
更新时间:2023-12-09 20:47:58
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,在△ABC中,边AB、AC的垂直平分线分别交BC于D、E.
(1)若BC=5,求△ADE的周长.
(2)若∠BAD+∠CAE=60°,求∠BAC的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/d5b24637-3b50-4ca2-b327-45de5ccceebf.png?resizew=189)
(1)若BC=5,求△ADE的周长.
(2)若∠BAD+∠CAE=60°,求∠BAC的度数.
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解答题-证明题
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适中
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【推荐2】如图,在正方形
的内部作等边
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/26/3e8fa1da-f8ce-472f-92b7-b51e6ccdf128.png?resizew=130)
(1)求证:
;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7bab4a36aba586eee89e7e3c38317a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/26/3e8fa1da-f8ce-472f-92b7-b51e6ccdf128.png?resizew=130)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cbad6599796efc1c177ae9349feda9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
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解答题-证明题
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适中
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【推荐1】阅读下面材料:小明遇到这样一个问题:如图1,在
中,
,
平分
,试判断
和
、
之间的数量关系.
上截取
,得到一个全等的三角形,从而将问题解决(如图2)请回答:
(1)在图2中,小明得到的全等三角形是
;
(2)
和
、
之间的数量关系是 .
参考小明思考问题的方法,解决问题:
如图3,在四边形
中,
平分
,
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3444048321137fbb4331823bdeb6e2.png)
(1)在图2中,小明得到的全等三角形是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7861a4ccb7c606518056c58565e03b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
参考小明思考问题的方法,解决问题:
如图3,在四边形
![](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/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c30c8c3724007af1450bcebf5287ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaeeec5029f06fbfca8acfa899dbe472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a306417e43670260e4b68a928a22071f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐2】如图,四边形
是矩形,点
在线段
的延长线上,连接
交
于点F,
,
是
的中点.若
,求
的长.
![](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/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39205290eeb467490d756f477476516d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337e7553c34f9c973119b729f424d20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/21/0a632c23-f5c5-46c6-a003-b5a1885f20ec.png?resizew=234)
您最近一年使用:0次
解答题-问答题
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名校
【推荐1】如图,在四边形纸片
中,
,
,将纸片沿过点D的直线折叠,使点C落在
上的点
处,折痕
交
于点E,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/8faff770-af92-4283-b877-1689c4f9538d.png?resizew=241)
(1)请确定四边形
的形状,并说明理由;
(2)若
,
,过点
作
于F,连接
交
于点M,连接
:
①四边形
的面积为 ;
②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da933feab8c102624ddffce6919cea36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83ccde054ec5f3473ede6c07e484290.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/8faff770-af92-4283-b877-1689c4f9538d.png?resizew=241)
(1)请确定四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cb0a9a29dc855d00c785c62e413985.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcfac9ab1dc776c9ec076ab2a132fcd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ae538fc119c39d28fa374956c8fe54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ecac2dad4cffdd971fd23deacff3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
①四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cb0a9a29dc855d00c785c62e413985.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8580d536ac2bfdccdd9c8b12439bb6a5.png)
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【推荐2】如图,
中,
于点
,点
,
分别是
,
的中点,连接
,
,
.
(1)求证
.
(2)若四边形
的周长是
,
的周长是
.求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4744b427f036dfbc6db68c87cd5c54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/9a4de13f-d1b2-4835-8472-46358c1157bc.png?resizew=158)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813ddbcd1b88407326b6d8683094a9c9.png)
(2)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a39cf1a9eedda28c63f13ea478ec6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1834490aacbee800ed5721312f4be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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解答题-作图题
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适中
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【推荐1】对于下面每个三角形,过顶点A作出三角形的中线、角平分线和高.
![](https://img.xkw.com/dksih/QBM/2017/9/13/1773342126768128/1773349651775488/STEM/4ae6e8b608eb4b28af8bf6c31aa2a91c.png?resizew=484)
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解答题-问答题
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【推荐2】如图,在△ABC中,AB=AC,D、E分别在边AB、AC上,DE//BC.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/3277d4bf-3ee9-4d61-bdf6-c01d5614ac55.png?resizew=150)
(1)试问△ADE是否是等腰三角形,并说明理由.
(2)若M为DE上的点,且BM平分
,CM平分
,若
的周长为20,BC=8.求
的周长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/3277d4bf-3ee9-4d61-bdf6-c01d5614ac55.png?resizew=150)
(1)试问△ADE是否是等腰三角形,并说明理由.
(2)若M为DE上的点,且BM平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c9a77f3dcaacefe3ee0a64ddf7f73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
您最近一年使用:0次