完成下面推理过程.在括号内的横线上填上推理依据.
如图,已知:
,
,
,求证:
.
证明:∵
,
∴
(_________).
∵
,
∴
(__________).
即
.∴![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3328beab12e5d16202cd31e6d2648e1c.png)
∵
,
∴
_________(_______).
∴
(___________).
∴
(_________).
如图,已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333ab24c4935210f4c232cd0c0fae358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c539fd3ffbe24c7aeeebd775c94b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02194e887cefaf9825b6f74c9a2f5d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333ab24c4935210f4c232cd0c0fae358.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386f0c6074119e7a2429bc86ee02a9d5.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c539fd3ffbe24c7aeeebd775c94b10.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8949230b7b92ae94d502271ceddc626f.png)
即
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444ee72016aa4f62bfa8caf78ed37240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3328beab12e5d16202cd31e6d2648e1c.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02194e887cefaf9825b6f74c9a2f5d9.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11257c1c0f00b29bad943dd312af11c3.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/117878cbd8c00f2aabcdf62b487e2dc7.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://img.xkw.com/dksih/QBM/2022/4/27/2967206876864512/2971506267955200/STEM/b5290c1c-8566-4821-8239-e52792b33547.png?resizew=182)
20-21七年级上·四川成都·期末 查看更多[10]
四川省成都市石室中学2020-2021学年七年级上学期期末数学试题广东省深圳市宝安区2020-2021学年七年级下学期期中数学试题内蒙古自治区呼伦贝尔市满洲里市2020-2021学年七年级下学期期末数学试题河南省三门峡市渑池县2020-2021学年七年级下学期期中考试数学试题江苏省海安市西片2021-2022学年七年级下学期第一阶段学业检测数学试题湖北省襄阳市襄州区2021-2022学年七年级下学期期中数学试题山东省烟台市2021-2022学年七年级下学期期中数学试题山东省青岛市莱西市2021-2022学年七年级下学期期中数学试题(已下线)专题11 根据平行线的性质与判定填写推理依据特训-【微专题】2022-2023学年七年级数学下册常考点微专题提分精练(北师大版)湖北省襄阳市襄州区第九中学2023-2024学年七年级下学期月考数学试题
更新时间:2022-05-03 16:47:53
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相似题推荐
解答题-问答题
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适中
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名校
【推荐1】如图:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/6351e00a-199e-47fb-b56f-92136072fe17.png?resizew=278)
(1)
,求
的度数;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46e27ca861c8bfcfedc2604fa7b3bba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/6351e00a-199e-47fb-b56f-92136072fe17.png?resizew=278)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04cd87ad4838deafc1747bc3d8e8381e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7da5277d659bc8f2548d99de456e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
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适中
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【推荐2】已知点B、O、C在同一条直线上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/a61b6962-7940-43cd-974e-68092bdd7808.jpg?resizew=440)
(1)如图1,若
,
,
平分
,求
.
(2)如图2,若
与
互余,
也与
互余,请在图2中画出符合条件的射线
加以计算后,求
的度数(用含
的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13ef2f1c0143b164308f1a5da982f3c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/a61b6962-7940-43cd-974e-68092bdd7808.jpg?resizew=440)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba1f04ac2b3498c50c39dfcc1e030be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7639c9377144ace567c2d0808647aa77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7307ac7510cf35f74337d368b94da4e5.png)
![](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/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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适中
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【推荐1】如图,在
中,
,
,垂足分别为
、
,
,
.求证:
.请将证明过程补充完整,并在括号内填写推理的依据.
证明:∵
,
,垂足分别为
、
(已知),
∴
,
( ① )
∴
(等量代换).
∴ ② ( ③ )
∴
( ④ )
又∵
(已知),
∴
( ⑤ )
∴ ⑥ ( ⑦ ).
又∵
(已知),
∴
( ⑧ )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de4a54cc7818be87a239f6de5f5d05b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6b8545c82bcdf2e1219f85a2efab82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7c0b6c89ca9e08cf4a07d45ad29c5e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/3276446b-f249-46f4-9422-3ea49005b316.png?resizew=149)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de4a54cc7818be87a239f6de5f5d05b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20cb14fea4a7cad4b7775a3dd67df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb29e564dc7c2521c53c48476cd315.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b460f453cdf44bb88798aafd45b088.png)
∴ ② ( ③ )
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63724678af0adff54ebcf59e524ac83e.png)
又∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18de672fe8dd05e117f5acf47bd5bfc1.png)
∴ ⑥ ( ⑦ ).
又∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6b8545c82bcdf2e1219f85a2efab82.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7c0b6c89ca9e08cf4a07d45ad29c5e.png)
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【推荐2】综合与实践.
问题情境
如图1是一副三角尺,三角尺
中,
,三角尺
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be05c6fab8b7a84bd308ec51566e9ea5.png)
.数学活动课上,同学们用一副三角尺展开了探究活动,同学们发现可以用平行线的知识计算三角尺摆放过程中出现的一些角度,和探究一些角之间的数量关系.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/a2046a56-e548-41e3-95eb-414f0a1959b0.png?resizew=360)
将两个三角尺进行摆放,使点
与点
重合,点
在
上,
与
相交于点
,求
的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/d200bdde-7c0f-4b35-9dcf-68690366fa7c.png?resizew=173)
智慧小组的解法如下:
解:过点
作
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/c18fe9c3-3f4c-4c5d-9de2-4fab8bfbd39a.png?resizew=188)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7975c8290a32bfb32954078d711adf13.png)
(依据1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a009724108d23b00f1789de73a9c9662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83e4c22881fbdd02a02571deaa9a1fe.png)
又![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7975c8290a32bfb32954078d711adf13.png)
(依据2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75c173664bf94d098fecf9f05ca10ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f7956376259c53452262c363d07ee7.png)
反思交流:
(1)上述证明过程中的“依据1”和“依据2”分别是指:
依据1:___________________________________________;
依据2:___________________________________________;
(2)如图2,将两个三角尺如图摆放,使点
与点
重合,点
在
上,点
在
上,
与
相交于点
,请用平行线的知识求
的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/081f18ce-a497-4081-9dfa-9955ffe23169.png?resizew=376)
(3)如图3,将三角尺
的直角顶点放在直线
上,使
,三角尺
的顶点
也在直线
上,
与
相交于
,则
与
有怎样的数量关系?说明理由.
问题情境
如图1是一副三角尺,三角尺
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d15182b1b0e8d5863823c618792a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be05c6fab8b7a84bd308ec51566e9ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500a4676e902014e98372b35d70de6ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/a2046a56-e548-41e3-95eb-414f0a1959b0.png?resizew=360)
将两个三角尺进行摆放,使点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61123f663c231f0536d31dfa071375d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/d200bdde-7c0f-4b35-9dcf-68690366fa7c.png?resizew=173)
智慧小组的解法如下:
解:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83c4d4bc6c3af3e83ed226480a18010.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/c18fe9c3-3f4c-4c5d-9de2-4fab8bfbd39a.png?resizew=188)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7975c8290a32bfb32954078d711adf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6596b88928612a646f38f6ed556b4619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a009724108d23b00f1789de73a9c9662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83e4c22881fbdd02a02571deaa9a1fe.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7975c8290a32bfb32954078d711adf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946de6218068044e8cf83116c6d4cdab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75c173664bf94d098fecf9f05ca10ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f7956376259c53452262c363d07ee7.png)
反思交流:
(1)上述证明过程中的“依据1”和“依据2”分别是指:
依据1:___________________________________________;
依据2:___________________________________________;
(2)如图2,将两个三角尺如图摆放,使点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d74465c34ad7afa5d39d9e300bdf86.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/081f18ce-a497-4081-9dfa-9955ffe23169.png?resizew=376)
(3)如图3,将三角尺
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3066befa5750964166ddc008f247b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.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/200cd17c82ed7a3a89dd5e33ec27975b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add18fdf2049abff08a687b950f1cc1f.png)
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解答题-证明题
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适中
(0.65)
名校
【推荐1】问题探究:
CD,我们发现∠E=∠B+∠D.我们怎么证明这个结论呢?
张山同学:如图②,过点E作EF
AB,把∠BED分成∠BEF与∠DEF的和,然后分别证明∠BEF=∠B,∠DEF=∠D.
李思同学:如图③,过点B作BF
DE,则∠E=∠EBF,再证明∠ABF=∠D.
问题解答:
(1)请按张山同学的思路,写出证明过程;
(2)请按李思同学的思路,写出证明过程;
问题迁移:
(3)如图④,已知AB
CD,EF平分∠AEC,FD平分∠EDC.若∠CED=3∠F,求∠F的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
张山同学:如图②,过点E作EF
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
李思同学:如图③,过点B作BF
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
问题解答:
(1)请按张山同学的思路,写出证明过程;
(2)请按李思同学的思路,写出证明过程;
问题迁移:
(3)如图④,已知AB
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如图,在
中,
,
为
边上的中线,
,
为过点
的一条直线,且
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.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/8af1074b9087145c970cb347fa1efcfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee73452ee4d5437f1399f1235b95e55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/6/7f77d976-edbe-40a8-8249-5788dbda5456.png?resizew=191)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
真题
名校
【推荐1】如图,
中,
,
,E、F分别是
,
上的点,且
,连接
交
于O.
;
(2)若
,延长
交
的延长线于G,当
时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93380ab8eccc6e6f11bdf19ffc2d4cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d35d8d8bb0dc17f2f86fe5b230a2b8.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/92034dd2bb9480b18709d01153467f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b9ea68dbddf33f0fed8f35a1fd5c90b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a917db13b0c7bb4a4f81c81a970454c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,已知点A、E、F、C在同一直线上,
,AE=CF,AD=CB.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897091657728000/2980023896662016/STEM/7c6c73a82948462084703b9d76cc2cd1.png?resizew=140)
(1)求证:△ADF≌△CBE;
(2)判断BE与DF的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897091657728000/2980023896662016/STEM/7c6c73a82948462084703b9d76cc2cd1.png?resizew=140)
(1)求证:△ADF≌△CBE;
(2)判断BE与DF的位置关系,并说明理由.
您最近一年使用:0次