已知:直线
,经过直线
上的定点
的直线
交
于点
,点
,
为直线
上的两点,且点
在点
右侧,点
的左侧时,连接
,
,满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/31/4c2ef4a0-6068-4759-ad1f-9a0bd1d59cb1.png?resizew=477)
(1)如图
,若
,
,直接写出
的度数为:______.
(2)如图
,射线
为
的角平分线,用等式表示
与
之间的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8c6d3b30208e0c50d884c9c04a48fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/31/4c2ef4a0-6068-4759-ad1f-9a0bd1d59cb1.png?resizew=477)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2950c8292780f92de7aab943f2d1de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b3f43e17a5b0003e41b8ab7690e22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f5dc1d043a4909a40238ff5b590c77.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba6e1df63e02be9fcc4e027d2a0a6e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f3c32e4d8a6f9593080c4578bfc495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb3874bda8f7063dafd50ec4f566121.png)
更新时间:2022-07-30 14:42:59
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,
中,
,
,
的角平分线
交
于点E.点D为
上一点,且
,
,
交于点M.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/f0e0883a-cf34-47fa-a192-532a5cc3882a.png?resizew=179)
(1)求
的度数;
(2)若
于点H,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf3bb6fc265edb63e78dab2a6dd3bed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc13fe21e64d9b45614ed43be847904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/f0e0883a-cf34-47fa-a192-532a5cc3882a.png?resizew=179)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a433a47da376e4a3f66af52b63351f84.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6f584802de2e7335d5b6ba33c9ac50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b1927db96d84f27197b5a654b622f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83042953e7f15e984b2da2ee9ca678d1.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,已知两条直线DM∥CN,线段AB的两个端点A、B分别在直线OM、CN上,∠C=∠BAD,点E在线段BC上,且DB平分∠ADE.
(1)求证:AB∥CD;
(2)若沿着NC方向平移线段AB,那么∠CBD与∠CED度数之间的关系是否随着AB位置的变化而变化?若变化,请找出变化规律;若不变化,请确定它们之间的数量关系.
(1)求证:AB∥CD;
(2)若沿着NC方向平移线段AB,那么∠CBD与∠CED度数之间的关系是否随着AB位置的变化而变化?若变化,请找出变化规律;若不变化,请确定它们之间的数量关系.
![](https://img.xkw.com/dksih/QBM/2020/3/19/2422666249347072/2423015174668288/STEM/5cd4d95c804641b993399cb89a9f7cd5.png?resizew=229)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】小琦碰到这样一道题:如图1,∠A=30°,∠B=45°,点C在射线BD上,求∠ACD的度数.经过思考,她想到了作平行线的方法,即过点C作CE
AB,因此可以得到∠ACE=∠A=30°,∠DCE=∠B=45°,∴∠ACD=∠ACE+∠DCE=30°+45°=75°.请学习小琦的解法,解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/5/07297e79-9c92-4842-9fb9-f489dddf7390.png?resizew=504)
(1)如图2,点D为BC的延长线上一点,求图中x的值;
(2)如图3,AB
CD,E为线段CD上一点,∠BAD=46°.
①若点P在AD的延长线上运动,求∠PEC-∠APE的度数;
②若点P在射线DA上运动,请直接写出∠APE与∠PEC之间的数量关系.(不考虑P与A,D重合的情况)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/5/07297e79-9c92-4842-9fb9-f489dddf7390.png?resizew=504)
(1)如图2,点D为BC的延长线上一点,求图中x的值;
(2)如图3,AB
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
①若点P在AD的延长线上运动,求∠PEC-∠APE的度数;
②若点P在射线DA上运动,请直接写出∠APE与∠PEC之间的数量关系.(不考虑P与A,D重合的情况)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/1/23174d6e-4997-4b55-9fa5-5180c8ed19ae.png?resizew=230)
(1)如图1,直接写出
与
之间的数量关系________.
(2)如图2,写出
与
之间的数量关系,并说明理由.
(3)经过上述探究,可得出结论:如果一个角的两边与另一个角的两边分别平行,那么这两个角________.
(4)已知
与
的两边分别平行,且
比
的
倍小
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aec42274b604bd82e235eadc497d1a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9895993df0c023235a3332e7521da87d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/1/23174d6e-4997-4b55-9fa5-5180c8ed19ae.png?resizew=230)
(1)如图1,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97285f9b02878e22a071e97fdb3f8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
(2)如图2,写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97285f9b02878e22a071e97fdb3f8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
(3)经过上述探究,可得出结论:如果一个角的两边与另一个角的两边分别平行,那么这两个角________.
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36581140ebac5d28438ea63b1b23b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,在梯形
中 ,
,
,
为
边的中点,
,
分别为
,
边上的点,若
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a34fdf9e6d2d87d01ad0bbb6a73ee05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d14809daa5ee983530db8ea9105be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.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/895dc3dc3a6606ff487a4c4863e18509.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6cee83d36c4da913e0790e5070c46f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64e0206b1814c35cc96bd2b6b12239a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eba8bf0c4a8e49b3fac25832a0b0005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/5fce5af0-7c4d-4f8a-86c1-d9be3a90d6c0.png?resizew=115)
您最近一年使用:0次