1 . 综合与实践
问题情境:综合与实践活动课上,老师提出如下问题:如图1直线
,直线l分别交
,
于点A,B,
的平分线交
于点C.试判断
和
的数量关系,并说明理由.
深入探究:(2)点D是射线
上不与A,C重合的一点,过点D作
交
于点E,连接
.
①如图2,当点D在点C右侧时,为探究
,
与
之间的数量关系,小文过点C作
,请根据他的思路,写出
,
与
之间的数量关系,并说明理由;
②当
,
的平分线
交
于点F,
所在直线与直线
交于点O,若
,直接写出
的度数.
问题情境:综合与实践活动课上,老师提出如下问题:如图1直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947aed0181a8c0bd81c6ebeba8d1ddc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95108f5aa7f7ed0f6e556fb50cdbae98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
深入探究:(2)点D是射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0aa4c793921fdaa5d430cb90d78ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
①如图2,当点D在点C右侧时,为探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a71e8a816d9ef65d4bffd81fd53216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db866ecc0c098bfc32ec8a43b65bdd58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e660b5bc650c65167910eb61de342576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a71e8a816d9ef65d4bffd81fd53216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db866ecc0c098bfc32ec8a43b65bdd58.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df82d2f68bcb541d60da3d33e8a68b19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6bb546471e29d8afb412e410f3754d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
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2 . 阅读与思考
下面是莉莉同学的数学学习笔记.请仔细阅读,并完成相应的任务.
任务:
(1)材料中的依据1是指:________________,依据2是指:________________.
(2)根据材料提供的方法,直接写出拓展应用的结果.
下面是莉莉同学的数学学习笔记.请仔细阅读,并完成相应的任务.
观察小猪的猪蹄,你会发现熟悉的几何图形,我们就把这个图形抽象地称为“猪蹄模型”.猪蹄模型中蕴含着角的数量关系.如图1, ![]() ![]() ![]() ![]() 证明:如图2,过点E作 ![]() ![]() ![]() ![]() ![]() ![]() 拓展应用:如图3, ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
(1)材料中的依据1是指:________________,依据2是指:________________.
(2)根据材料提供的方法,直接写出拓展应用的结果.
您最近一年使用:0次
3 . 如图,直线
分别交
于G,H两点,
平分
,
于点H,且
,
.
的大小.
(2)猜想
与
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9e953a4a5f98c96bbe67cbaadf76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec88884321733714de9db5466629ccf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9dab5f13218d9166fdc55a0655f4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55671519b82e41f46da9804bf48c7f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb19bc23199176c4d560ef196bcdda45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424ea901c8c4702124d40bfbad1fe02e.png)
(2)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9e953a4a5f98c96bbe67cbaadf76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef1f7b9adab87736321e30949a4d668.png)
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4 . 完成下面的证明:
如图,
,
平分
交
的延长线于点E,交
于点F,
.求证:
.
平分
,
∴
(角平分线的定义).
∵
,
∴
(______).
∵
,
,
∴______
(______).
∴
(______).
如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f0fa0f13f1ae51d2a6cac2d89c91d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc8c4f6e8d4d21439ee0f7f3a64e77c.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81cf2fc188075ce91700f9a3c40f4dc.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc8c4f6e8d4d21439ee0f7f3a64e77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f0fa0f13f1ae51d2a6cac2d89c91d4.png)
∴______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f9d0f420f380eb6eba86924a5750ed.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
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5 . 综合与实践
如图,直线
,
相交于点E,
,
平分
.
,则
的度数为______.
(2)小宇经探究发现
的度数始终是
度数的一半,请判断他的发现是否正确,并说明理由.
(3)在射线
上取一点O,将线段
延射线
方向平移到
的位置,连接
,交
于点H.若
,求
的度数.
如图,直线
![](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/4b6cc3789c0e9b7d1226aa0de3327599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30897c312a30452a4278f01a67513092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6a23d521606a35298bbf147f7f830c.png)
(2)小宇经探究发现
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d335bf8cb2e6e5e50d0e03a14d1f48d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
(3)在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90c780dac29ff8b7df5881d3b33abab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ee685a6d4799b0ba7e114a3906c0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fce10478485ef01d2318fc3465bb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc5e3751ad8b4d4a1e2094fa8f2c0e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ad9da8e308157f40e22ea8d02b6a08.png)
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6 . 综合与探究
探索发现:
(1)老师在数学课上留下一道思考题:如图1,
,点
在
、
之间,连接
、
,试说明
.
下面是两位同学添加辅助线的方法:
解决问题:
(2)已知直线
,连接
,
,
.
分别平分
,
,求
的度数.
②如图5,延长线段
至点
,过点
作
交CD的延长线于点
,
,
分别平分
,
,请判断
的度数是否为定值.若是, 直接写出
的度数;若不是,请说明理由.
探索发现:
(1)老师在数学课上留下一道思考题:如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e392c23624d91d702fba6d4da3ee35.png)
下面是两位同学添加辅助线的方法:
解决问题:
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd5cbe1df06719c569e916cea573267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b6ce13e7d80b9d369332ce400b7921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c0ac8ee3a7f296972e127cf010c5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
②如图5,延长线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8957052cc54047c104656f809c97d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71fe246270d1277f9eb2bf15af22e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a7a783f664ab88eabe12c490dcfd3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a01ad19bdaa54867e1235bd6621d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a01ad19bdaa54867e1235bd6621d3b.png)
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名校
7 . 如图
,直线
与直线
、
分别交于点
、
,
.
;
(2)如图
,
与
的角平分线交于点
,延长
交
于点
,点
是
上一点,且
,求证:
;
(3)如图
,在(2)的条件下,连接
,
,K是GH上一点,连接PK,作
平分
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1717b5311ed602f1730e86d9322647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2ee75a234ac05a3225e49ddd8c5065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f68e4414c9ab464bf433385c03705f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb1de78a83c3a206ed3a3949e313f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e95571ddc57113018cab89b50c12128.png)
(3)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b3456fca927e4c12484da10bf5dee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e00216eb8b0f3b8c1e0713c98fa4dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e8b284f8445c47c51bdbf3a87923e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0c68bc419d189584f3c3d1ec9c46c4.png)
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2024-05-07更新
|
216次组卷
|
4卷引用:山西省吕梁市交城县2023-2024学年七年级下学期期中数学试题
山西省吕梁市交城县2023-2024学年七年级下学期期中数学试题黑龙江省哈尔滨市德强学校2023-2024学年七年级上学期期中数学试题(已下线)专题02 平行线的判定与性质-【帮课堂】2023-2024学年七年级数学下册同步学与练(人教版)浙江省2023-2024学年七年级下学期期中数学试题
名校
8 . 如图,点
,
分别在直线
,
上,
,G是直线
上方一点,
,
,若
平分
,则
的度数为( )
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fab6747d29d2efa932e726b1343b2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb2a0e471e70dc6c651de7284d0b771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d335bf8cb2e6e5e50d0e03a14d1f48d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12cacf31cd1ec38b20c4d58e2157a32d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-01更新
|
44次组卷
|
2卷引用:2024年山西省吕梁市中阳县多校中考三模数学试题
9 . 综合与探究
如图1,已知
,
是其内部一点,过点
作
,
,分别交
,
于点
,
,
平分
,
平分
.
的角:______.
②试猜想
与
的位置关系,并说明理由.
(2)如图2,点
在射线
上,连接
,
,且
,
平分
,交
于点
,延长
交
于点
,若
,求
的度数.
如图1,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c0dbf1a2698daa14c142e663e7ef67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061248f4e3932ad43c1abd52ada56a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8074097e9675e17ff9931db73735512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172766b458ea1e95ab1f5cd70bab7463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef8133d0f3942399d3d727cec8b22c1.png)
图1 图2
(1)①写出所有等于![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
②试猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
(2)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b87fde05382309fde4793985caf0c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edbd1aa951458ec8c30393d52d7789f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578af9c77ada1f1f2d14bc969126c67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c3e61d4854c7dce6c8b2ddb67d49cd.png)
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10 . 如图,直线
,
相交于点
,
,
平分
.
,求
的度数.
(2)若
比
大
,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/7998a289f6d03dd2a12a3196e5b870d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836ad93cff80e7baddc9d7f6a86ad183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843adec8fba1741ccb81a9017cfb815f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf5743458000a6a22893ee9cfe06a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778d3556c2454a733a15629af5c2444f.png)
您最近一年使用:0次