如图所示,已知点O为直线
上一点,射线
平分
,射线
平分
,请写出图中有互余关系的角、互补关系的角各3对.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f55c6ac896ab4277fae2230a6e10b0.png)
![](https://img.xkw.com/dksih/QBM/2020/9/22/2555277387841536/2555322145906688/STEM/47c7fee6-0f5d-4d37-b432-0fa21d2f16d6.png)
更新时间:2020-09-22 16:39:07
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解答题-问答题
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适中
(0.65)
【推荐1】如图,
是
内部的一条射线,
是
内部的一条射线,
是
内部的一条射线..
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/2ea59661-5e7b-4979-93e7-9134cc5518d2.png?resizew=323)
(1)如图1,若
,
,
、
分别是
、
的角平分线,求
的度数;
(2)如图2,若
平分
,且
,
,则
和
之间存在怎样的数量关系?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/2ea59661-5e7b-4979-93e7-9134cc5518d2.png?resizew=323)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0edc253f3f470f0ad7e042b87e6494ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb6a70dd29662017ca458e43b7dd777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e412532c40e76a2c934070f2483efac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2445a8dc46526c5b3012447a538f684d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9de708d1544ebe0b82e7e6e2102382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2f7bab4ed36ec5d04db3aeed2796f2.png)
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解答题-计算题
|
适中
(0.65)
【推荐2】已知
,射线
是
的角平分线,点
是
内部一点,且点
不在
的平分线上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/26/c38975c4-3fae-4008-b803-d7bdef85b631.png?resizew=365)
(1)如图
,当
时,计算
的度数;
(2)点
在直线
上方,且
用等式表示
和
之间的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/26/c38975c4-3fae-4008-b803-d7bdef85b631.png?resizew=365)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b571c587a699f24c1121b09d54f3f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2c2043b603457b46870d9dc81ddf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
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解答题-证明题
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名校
【推荐1】如图(1),点B、C、E在同一直线上
.
(1)求证:
;
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/1/cb486bfd-b2eb-4a24-aedf-04f2d3a316d3.png?resizew=155)
(2)若
,
于点
,
于点
,请直接写出图(2)中所有与
互余的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd938cc7396ee6cdcd7bb70e428736ff.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf6935c149c05293ab3f17cb3719c6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/1/cb486bfd-b2eb-4a24-aedf-04f2d3a316d3.png?resizew=155)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2a245381e615882ee5feb7793a1df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e642dfd54ba57ea8e35d8a40cd9a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/1/fb1825f4-70ee-4261-9a50-bdf7490d104b.png?resizew=169)
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【推荐2】我们知道:光线反射时,反射光线、入射光线和法线在同一平面内,反射光线、入射光线分别在法线两侧,反射角等于入射角.
如图1,EF为一镜面,AO为入射光线,入射点为点O,ON为法线(过入射点O且垂直于镜面EF的直线),OB为反射光线,此时反射角∠BON等于入射角∠AON.
(2)两平面镜OP、OQ相交于点O,一束光线从点A出发,经过平面镜两次反射后,恰好经过点B.
①如图2,当∠POQ为多少度时,光线
?请说明理由.
②如图3,若两条光线AM、NB相交于点E,请探究∠POQ与∠MEN之间满足的等量关系,并说明理由.
③如图4,若两条光线AM、NB所在的直线相交于点E,∠POQ与∠MEN之间满足的等量关系是______(直接写出结果)
如图1,EF为一镜面,AO为入射光线,入射点为点O,ON为法线(过入射点O且垂直于镜面EF的直线),OB为反射光线,此时反射角∠BON等于入射角∠AON.
(2)两平面镜OP、OQ相交于点O,一束光线从点A出发,经过平面镜两次反射后,恰好经过点B.
①如图2,当∠POQ为多少度时,光线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cde4c492414600dc5d54a3f23016ae.png)
②如图3,若两条光线AM、NB相交于点E,请探究∠POQ与∠MEN之间满足的等量关系,并说明理由.
③如图4,若两条光线AM、NB所在的直线相交于点E,∠POQ与∠MEN之间满足的等量关系是______(直接写出结果)
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解答题-问答题
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【推荐1】如图,直线
、
和
相交于点
;
(1)分别写出
,
的对顶角;
(2)如果
,
,求
和
的度数.
![](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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/0cb32c3b-d242-4c24-a6bd-72aefd9f00a7.png?resizew=188)
(1)分别写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a52e349973e2c589b48066c9068a8e.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1009c80f5e73d0b43836e18c21fc3041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac975857c7029dc128b415df6e215c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
您最近一年使用:0次
解答题-问答题
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【推荐2】如图,直线
与
相交于点
,
.
(1)如图
,若
平分
,求
的度数;
(2)如图
,若
,且
平分
,求
的度数.
![](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/a1309fbd835cf1a8b913d19f57b2b374.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/3/897cc386-04c0-495d-b982-efbe66eae7a8.png?resizew=347)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0726639a73f3e2dd64b17d9819719a21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e82995c1c26b468e2616ba0e66107eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
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