如图1,将矩形
放在平面直角坐标系中,O为原点,点C在x轴上,点A在y轴上,
,
,把矩形
沿着对角线
所在直线翻折,点C落在点D处,
交
于点E.
(2)如图2,过点D作
,交
于点
,交
于点
,连接
,试判断四边形
的形状,并说明理由;
(3)在(2)的条件下,点M是坐标轴上的一点,直线
上是否存在一点N,使以点O,D,M,N为顶点的四边形是平行四边形?若存在,请直接写出点N坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e3dfcd8aff269dd5aba398816490c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26ea9e9e42ced4f9b7540b368fbd171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)如图2,过点D作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821de7405435bd9caa89e5afc8f6ec72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9365798257869ab59ef656d3a0679553.png)
(3)在(2)的条件下,点M是坐标轴上的一点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
更新时间:2024-05-26 15:13:12
|
相似题推荐
解答题-问答题
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较难
(0.4)
【推荐1】如图1,在
中,
,
,
,点D从点A出发,以
的速度沿
边向终点B运动(点D不与点A、B重合),连接
,将
沿
翻折得到
.设点D的运动时间为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/6febcc04-923e-41f7-acb4-2674e9f9e76b.png?resizew=239)
(1)用含t的代数式表示线段
的长;
(2)如图2,当
时,求t的值;
(3)当点A落在
内部时,求t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76899b3a0bfbbdae7cb1148ad4bf018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432043f79e122f291c47453013042704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.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/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b265d121f9ebc13671a5719604476a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d744165d6aad705f64de41a9d931750a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/6febcc04-923e-41f7-acb4-2674e9f9e76b.png?resizew=239)
(1)用含t的代数式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
(3)当点A落在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
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真题
【推荐2】如图1,抛物线
与x轴交于点
,
,与y轴交于点C,顶点为D,直线AD交y轴于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/11/e6366f3a-579f-4e69-b55f-48187f0772e8.png?resizew=369)
(1)求抛物线的解析式.
(2)如图2,将
沿直线AD平移得到
.
①当点M落在抛物线上时,求点M的坐标.
②在
移动过程中,存在点M使
为直角三角形,请直接写出所有符合条件的点M的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad97284da351a44c36c11d5cec429a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2375a27ead9549550676d4e6a2b47243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1dae05f42110fde12a61fca98bc408.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/11/e6366f3a-579f-4e69-b55f-48187f0772e8.png?resizew=369)
(1)求抛物线的解析式.
(2)如图2,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd5a1e516644950ef35eafd859b262f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9726cf6b08a587ae8bd7f57229a17468.png)
①当点M落在抛物线上时,求点M的坐标.
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9726cf6b08a587ae8bd7f57229a17468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f0296c53918018745f4e3906e2dd8.png)
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解答题-作图题
|
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【推荐1】问题探究:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/5db9a8f9-51fd-4757-9073-4256b2fd6a54.jpg?resizew=458)
(1)如图①,
中,
,
,点D在
上,若
平分
的面积,
的长度为______.
(2)如图②,平行四边形
中,
,
,
,点M在
上,点N在
上,若
平分平行四边形
的面积,且线段
的长度最短,请你画出符合要求的线段
,并求出此时
的长度.
(3)如图③王叔叔家一块四边形菜地
,王叔叔打算过D点修一条笔直的小路把四边形菜地
分成面积相等的两部分,分别种植不同的农作物,已知
米,
米,
,过点D是否存在一条直线将四边形
的面积平分,若存在,求平分该四边形
的面积的线段长;若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/5db9a8f9-51fd-4757-9073-4256b2fd6a54.jpg?resizew=458)
(1)如图①,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8817091d0f4b7d7ac6df560cb63c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)如图②,平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2594e927cb7ed022acc039c3bb136d0.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(3)如图③王叔叔家一块四边形菜地
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8208fac837d9644fc08e296f9b748b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6538f9d8fa0c59ce45adca1e0384a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】如图1,在平面直角坐标系中,一次函数
的图象与x轴交于点
,与y轴交于点B,且与正比例函数
的图象交于点
.
(1)求m的值及一次函数表达式;
(2)如图2,若点P是x轴上的一个动点,连接PB,PC,当
最小时,求
的最小值及此时点P的坐标;
(3)将(2)问中
最小时的P点向右平移
个单位长度,再向上平移1个单位长度得点M,点N是坐标平面内的一个点,当以点A,M,N,B为顶点的四边形是平行四边形时,请直接写出符合条件的所有点N的坐标,并选其中一个写出求解过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0d82cb174d173b7e36937c3f99f591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63c934860b5ae200db881b4623e994.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/27/a8a24680-ec4f-4716-8f59-df6669eb0047.png?resizew=520)
(1)求m的值及一次函数表达式;
(2)如图2,若点P是x轴上的一个动点,连接PB,PC,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
(3)将(2)问中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9a8ceaf89d3d6c829df9e134f93b01.png)
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【推荐1】如图,在矩形ABCD中,AB=6,BC=8,动点E从点A出发,沿边AD,DC向点C运动,A,D关于直线BE的对称点分别为M,N,连接MN.
(2)当N在BC延长线上时,求DE的长,并判断直线MN与直线BD的位置关系,说明理由.
(3)当直线MN恰好经过点C时,求DE的长.
(2)当N在BC延长线上时,求DE的长,并判断直线MN与直线BD的位置关系,说明理由.
(3)当直线MN恰好经过点C时,求DE的长.
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【推荐2】如图,在矩形
中,
,
,点
是
边上的动点,将矩形
沿
折叠,点
落在点
处,连接
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/5507a909-6a23-4c1b-bf57-b516e29f04c3.png?resizew=486)
(1)如图1,求证:
;
(2)如图2,若点
恰好落在
上,求
的值;
(3)点
在
边上运动的过程中,
的度数是否存在最大值,若存在,求出此时线段
的长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/5507a909-6a23-4c1b-bf57-b516e29f04c3.png?resizew=486)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b62cb975f261532195c508be8e890f.png)
(2)如图2,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4953f64aead21c2a2e50a248d88c5a07.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6a780bd6bbffad70d7430523a74cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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解答题-证明题
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较难
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【推荐1】在平行四边形
中,
,
,垂足分别为点E,F,且
.
(1)如图1,求证:四边形
是菱形;
(2)如图2,连接
,交
于点G,交
于点H,连接
,若
,在不添加任何字母及辅助线的情况下,请直接写出图中面积是
面积2倍的所有三角形..
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fbee06d305abf6692125513dc3757f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92034dd2bb9480b18709d01153467f8f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/18/0eb4916c-05e0-4038-8313-f1be84ae4ccb.png?resizew=347)
(1)如图1,求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead7537a53f3bc6411cadbe66a5501b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8355f0228a2f9b453a9ce8ea1b3910ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20227c155003de7163d407daf0a5e74.png)
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【推荐2】如图1,在菱形
中,对角线
,
,
,
交于点
,
是
边的中点,
是
边上一动点(不与点
重合),延长
交射线
于点
,连接
,
.
(1)求证:
是等边三角形.
(2)如图2,当点
与点
重合时,判断四边形
的形状,并说明理由.
(3)直接写出当
的值为多少时,四边形
是矩形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c99fc553ecb3e2afdb7058201bc642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/1/4f07c32e-917b-497b-88b6-0b6f7e05fea8.png?resizew=381)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c505c02c59313fe0108392a5bf5127.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a6fa5218491da01843cdfde0c3dcbd.png)
(3)直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a6fa5218491da01843cdfde0c3dcbd.png)
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