1 . 如图,点E,F在
上,
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/decd02bb1fd6ac5a3610a279fe96212b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d4a94e65672e52bac3e6c927b0a66d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba06c3ea41c13a3cb01e46ffb0a4aee8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/7593b758-e044-4edd-ae71-1909ba8ae25a.png?resizew=140)
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2 . 如图,
,
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5b4ea605cf0b98e428d071f6be6762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6307019d82d2a2a51e0ffd4ebf345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5fc6ead6416492c231c320a5486f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa3115a985b37d25d325836409c7766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5007e72f2706deb1b843fa8e900279e6.png)
![](https://img.xkw.com/dksih/QBM/2024/1/22/3416849008549888/3418872045568000/STEM/e91113490c4a4685919f0291ef629b0c.png?resizew=149)
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3 . 如图是小明制作的风筝骨架示意图,他先量得
,然后确定木棒
的中点,再将木棒
固定在点A和中点处,就可确保木棒
和
垂直,小明运用的数学知识不可能是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/a038159d-6b1c-4dca-94e0-5503f16c3551.png?resizew=149)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d212c1709b8e72a055cf1b5381ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/a038159d-6b1c-4dca-94e0-5503f16c3551.png?resizew=149)
A.等腰三角形三线合一 | B.![]() | C.![]() | D.![]() |
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4 . 如图,已知
平分
,添加一个条件后能够运用“
”的方法判定
,则这个条件是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a290f047f50481318d040c604d72f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b84c9371e4a03c80783e0ec52f60530.png)
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2024-01-24更新
|
93次组卷
|
3卷引用:重庆市万州区2023-2024学年八年级上学期期末数学试题
重庆市万州区2023-2024学年八年级上学期期末数学试题重庆市万州区部分学校2023-2024学年八年级上学期期末数学试题(已下线)专题05 全等三角形的判定与性质(含全等模型)(8大题型+优选提升题)-备战2023-2024学年七年级数学下学期期末真题分类汇编(北师大版)
解答题-证明题
|
较易(0.85)
|
5 . 如图,
,
.下列三个条件:
①
;
②
;
③
.
请你从①②③中选一个条件,使
.
(2)添加条件后,请证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaae99b4ac308549134169e69247a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c244edbf77fbb8e9c017515e370c5c8.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfdadd6f7bf825732dd8833d5d194d68.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c10ef52c84726a0a1e9a11c660f921.png)
请你从①②③中选一个条件,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac61f3477e623aa4f924a82bd7a06ce4.png)
(2)添加条件后,请证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac61f3477e623aa4f924a82bd7a06ce4.png)
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2024-01-23更新
|
169次组卷
|
2卷引用:福建省泉州市安溪县2023-2024学年八年级上学期期末数学试题
6 . 命题:如果两个三角形有两条边和其中一条边上的高分别相等,那么这两个三角形全等,上述命题是一个几何真命题.将其改写成己知、求证的形式,画出图形(如图),请根据该真命题的内容完成下述填空并给出完整的证明过程.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/ea1156d2-f73e-44b0-acd6-f2fb79f19972.png?resizew=230)
已知:如图,在
与
中,
,
,
分别为
边、
边上的高,_________.
求证:__________________.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/ea1156d2-f73e-44b0-acd6-f2fb79f19972.png?resizew=230)
已知:如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9cec6587e65000c656478eaa2caf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
求证:__________________.
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7 . 已知:如图,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb67f27bcda7681b19239a199b4c4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdea1e9d11ae952acd9f7e77a30dee8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55db8a45288de10daa28304170f7539b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/ca64bb91-aa11-4d02-904b-28060b7a4a3e.png?resizew=135)
您最近一年使用:0次
8 . 如图,在矩形
中,点
,
分别是
,
的中点.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0c47cd7e15d3dda6cf2c5affef3ac6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/5a486e10-032a-4c71-9991-3e44bddcc587.png?resizew=180)
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9 . 如图,要测池塘两端A,B的距离,小明先在地上取一个可以直接到达A和B的点C,连接
并延长到D,使
;连接
并延长到E,使
,由
和
全等得到
.那么判定其全等的依据是________ (用三个字母表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e12457d5b7d0f2611f4cdc173ceb784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa5357d8bbc8778d64cd38cff09ceb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a130e7c109e2196b97e1a76281bf3cf6.png)
您最近一年使用:0次
2024-01-16更新
|
93次组卷
|
5卷引用:山东省烟台市北部(五四制)2023-2024学年七年级上学期期中考试数学试题
山东省烟台市北部(五四制)2023-2024学年七年级上学期期中考试数学试题江西省赣州市赣县区2023-2024学年八年级上学期期末数学试题江西省赣州市赣县2023-2024学年八年级上学期期末数学试题 山东省烟台市福山区(五四制)2023-2024学年七年级上学期期中考试数学试题(已下线)专题05 全等三角形的判定与性质(含全等模型)(8大题型+优选提升题)-备战2023-2024学年七年级数学下学期期末真题分类汇编(北师大版)
10 . 如图,菱形
中,对角线
、
相交于点
,
分别是边
、
的中点,连接
、
、
,则下列叙述不正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/4e1a3c1b-5526-4bad-a6a7-3a36a8da0de2.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/4e1a3c1b-5526-4bad-a6a7-3a36a8da0de2.png?resizew=185)
A.![]() | B.四边形![]() |
C.![]() | D.四边形![]() ![]() |
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