如图,直线
,
交于点
,射线
,
都在直线
的上方,且
.
(1)若
,
,求
的度数.
(2)若
平分
,请写出图中与
互余的角:________.(直接写出所有 答案)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acc3b50b12699a4a9a4cc391b8f5bcf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b5ca8919247ff7e80b00d686373757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfbe449752ad3394e4edd5791814d528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a52e349973e2c589b48066c9068a8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/8bbdd711-7d5b-4db5-ab39-f6d2475386a8.png?resizew=161)
20-21七年级上·浙江温州·期末 查看更多[2]
更新时间:2021-02-06 07:39:14
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,∠AOB=90°,∠AOC是锐角,OD平分∠BOC,OE平分∠AOC.求∠DOE的度数.
![](https://img.xkw.com/dksih/QBM/2018/8/1/2000957793959936/2001799961976832/STEM/4e65a2b452f7419b9d80a9c1c3ce2cbc.png?resizew=192)
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解答题-证明题
|
适中
(0.65)
【推荐2】已知:直线
分别与直线
相交于点G,H,并且
.
(1)如图1,求证:
;
(2)若点M在直线
之间,连接GM,HM,
,
,
①如图2,求
的度数(可用含
的式子表示);
②如图3,
平分
,在
的延长线上取点N,连接
,若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf86f7cf381c563ad80af86feeed83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6c7461e27d8a0b50e734bf59b49a7a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/27/1c0ce750-5b87-4c65-b913-f6570dc9708a.png?resizew=467)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
(2)若点M在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf86f7cf381c563ad80af86feeed83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67e1c1c0d1001a47aced90b5aa0be4b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8e7a0ece3f0bbe23b5862a46ce06ea.png)
①如图2,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41476c9a7d1ab514840559168b323d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b6ac212b36200747df0bf2eadc9fb4.png)
②如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643e59176327bd52a66fbc507754b4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83042953e7f15e984b2da2ee9ca678d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a459f78e4a3516d8a8535290ede7f386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1923b4daa138346838c2c77489c5a766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1abc4cec2a714ccc10194cebf3fcc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6be52196c5776912410ab61ece7b57f6.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】(1)阅读下面材料:
杉杉遇到这样一个问题:
已知:如图甲,AB∥CD,E为AB,CD之间一点,连接BE,DE,得到∠BED.求证:∠BED=∠B+∠D.
杉杉是这样做的,并请你在括号内填写推理的依据:
过点E作EF∥AB,则有∠BEF=∠B.( )
∵AB∥CD,∴EF∥CD.( )
∴∠FED=∠D.
∴∠BEF+∠FED=∠B+∠D.
即∠BED=∠B+∠D.
(2)请你参考杉杉思考问题的方法,解决问题:如图乙.
已知:直线a∥b,点A,B在直线a上,点C,D在直线b上,连接AD,BC,BE平分∠ABC,DE平分∠ADC,且BE,DE所在的直线交于点E.
①如图1,当点B在点A的左侧时,若∠ABC=60°,∠ADC=70°,求∠BED的度数;
②如图2,当点B在点A的右侧时,设∠ABC=α,∠ADC=β,请直接写出∠BED的度数(用含有α,β的式子表示).
杉杉遇到这样一个问题:
已知:如图甲,AB∥CD,E为AB,CD之间一点,连接BE,DE,得到∠BED.求证:∠BED=∠B+∠D.
杉杉是这样做的,并请你在括号内填写推理的依据:
过点E作EF∥AB,则有∠BEF=∠B.( )
∵AB∥CD,∴EF∥CD.( )
∴∠FED=∠D.
∴∠BEF+∠FED=∠B+∠D.
即∠BED=∠B+∠D.
(2)请你参考杉杉思考问题的方法,解决问题:如图乙.
已知:直线a∥b,点A,B在直线a上,点C,D在直线b上,连接AD,BC,BE平分∠ABC,DE平分∠ADC,且BE,DE所在的直线交于点E.
①如图1,当点B在点A的左侧时,若∠ABC=60°,∠ADC=70°,求∠BED的度数;
②如图2,当点B在点A的右侧时,设∠ABC=α,∠ADC=β,请直接写出∠BED的度数(用含有α,β的式子表示).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/33a02436-31d5-4d7d-a920-16595aac230d.png?resizew=478)
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解答题-证明题
|
适中
(0.65)
【推荐2】如图,
,点
在直线
上,射线
经过点
,平分
交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/18/07bb70e8-d125-4a07-8ce2-5302229e268d.png?resizew=149)
(1)求证:
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351684a555d96e6805ba08a1912518b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/18/07bb70e8-d125-4a07-8ce2-5302229e268d.png?resizew=149)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a816a40d3de2832d5d03518c01b38136.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da1231c8c6d44e33528c24fbd521e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c767d5ddd42ea81075c4a3e30f6dba40.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,点A,O,B在一条直线上
,
,OD是
的平分线.
![](https://img.xkw.com/dksih/QBM/2022/3/1/2926980826177536/2930442698203136/STEM/376da257-ab8c-46f5-a5ec-7b62aa0acced.png?resizew=173)
(1)求
和
的度数.
(2)请直接写出图中
的余角和补角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a94a3697e5685193cd3f68cd7964373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a3ec6dbc8fdc705e2b805410bc5e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://img.xkw.com/dksih/QBM/2022/3/1/2926980826177536/2930442698203136/STEM/376da257-ab8c-46f5-a5ec-7b62aa0acced.png?resizew=173)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
(2)请直接写出图中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
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解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图,在由相同小正方形组成的网格中,点
都在网格的格点上,
,射线
在
的内部,请仅用无刻度直尺 作图:
(1)如图1,过点
作直线
,使
;
(2)如图2,在
的外部,作射线
,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbcb492a5f3fe9651ecf2efd36aa5eef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/2d098786-addd-4507-9e5c-b61ec90f57f7.png?resizew=296)
(1)如图1,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1453e28d8b94c7ad5ae8f75dafd7a4c5.png)
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fce9becf82119410085cbb19f6009a.png)
您最近一年使用:0次