已知在梯形
中,连接
,且
,设
.下列两个说法:
①
;②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769c127382e17b013d8719711a34623a.png)
则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2d3ea3bdfca7111b823bb1c381a0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc1f76257275ab4b04f9bc913535670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f92b09f88aee4ed088bf9b86fd5bc53b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03d4f802e28c8339a96e14d9312ff89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769c127382e17b013d8719711a34623a.png)
则下列说法正确的是( )
A.①正确②错误 | B.①错误②正确 | C.①②均正确 | D.①②均错误 |
2023·上海·中考真题 查看更多[10]
(已下线)2023年上海市中考数学真题(已下线)专题17 几何压轴题-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(全国通用)(已下线)2023年上海市中考数学真题变式题5-9题(已下线)专题01梯形(2大易错点+3大提分策略+强化训练)-备战2024年中考数学考试易错题(上海专用)江苏省南京市玄武区南京玄武外国语学校2023-2024学年九年级下学期3月月考数学试题(已下线)热点06 四边形与向量(9大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(上海专用)(已下线)重难点01 选择题、填空题压轴题(9大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(上海专用)(已下线)专题04 四边形(7大热点题型)-2024年中考数学毕业班二轮热点题型归纳与变式演练(上海专用)(已下线)专题15 四边形综合(一)(五大热点题型归纳)-2024年中考数学二轮热点题型归纳与变式演练(云南专用)(已下线)专题6.15 平行四边形(全章直通中考)(培优练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)
更新时间:2023-06-19 17:18:42
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名校
【推荐1】如图,
中,
,
于D,
平分
,且
于E,与
相交于点F,H是
边的中点,连接
与
相交于点G.下列结论正确的有( )个.
①
;②
;③
是等腰三角形;④
;⑤
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c284ccb6f4ee7a8690013d2ce16e226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8bb808edb7f81fb3c14c8f3d7f0fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728c6822658a9b1972a6dc3b55c9b1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40277f2c88dc0b716383fc785df8ab7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f69f65e38ffa351e55180bec25aa1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05006a7ea36dc6a9f2e17bf79e98b6a0.png)
A.5 | B.4 | C.3 | D.2 |
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【推荐2】如图,正方形
的边长为
,点
在边
上运动(不与点
,
重合),
,点
在射线
上,且
,
与
相交于点
,连接
、
、
.则下列结论:①
;②
的周长为
;③
;④
的面积的最大值是
;⑤当
时,
是线段
的中点.其中正确的结论是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/8b40980c-315c-4537-be5d-7c8e85e6e2cf.png?resizew=121)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6861199a0ba13fc6bd649f3ff60ef597.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22569e5010fe900eaefc4a025c774b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26526faf0e64ce31688026630b502427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646e45a7ffef530bc1d0bd8d4fc72127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc12dd97e69a4d7675bc531fb24415a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6086c9f7c3ee2ca5e0fcf50972be53e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40696a95d010ce340906da517e3b3ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f4e9f8e769b0c31b45ea4be46f7651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893ebf2b7e0b88b262a027c01e4e65c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/8b40980c-315c-4537-be5d-7c8e85e6e2cf.png?resizew=121)
A.①②③ | B.②④⑤ | C.①③④ | D.①④⑤ |
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【推荐1】在平面直角坐标系中,点
,点
,点
为坐标轴上一点,若
为等腰三角形,且
为其中的一个底角,则点
的坐标不可能是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb898663f98b8400a897913b4d3102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,已知四边形
中,
,
,点
分别是边
上的两个动点,且
,过点B作
于G,连接
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26911c3624466d55d70d76684b16362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11944f055fd806016ae3576019d4bf30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e08ce4a6ff34c0b2c22e736b5df378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图,在
中,对角线
相交于点O,
,E、F、G分别是
的中点,下列结论:①
;②
;③
平分
;④
,其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec88884321733714de9db5466629ccf2.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
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【推荐2】如图,已知直线
,
与
之间的距离为
.
、
是直线
上两个动点(点
在
点的左侧),且
.连接
、
、
,将
沿
折叠得到
.下列说法:①四边形
的面积始终为
;②当
与
重合时,四边形
是菱形;③当
与
不重合时,连接
、
,则
;④若以
、
、
、
为顶点的四边形为矩形,则此矩形相邻两边之和为
或
.其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778ba4674ac8501397aea09be7453ba3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2df93bd15f25096c510b589aad0dfc1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d52429c8324350309f77e7209a5c35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
.
A.①②③ | B.①③④ | C.①②④ | D.①②③④ |
您最近一年使用:0次
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【推荐1】如图,在平行四边形ABCD中,E是BD的中点,则下列四个结论:①
;②若
,
,则
;③
;④若
,则
与
全等.其中正确结论的个数为( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b317b54f6072b74b42e27a534eddf28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a5c35b41bb1a8fa59998a6dcc791f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a37ba261860ddad9d11b2e8348a8f3.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次