如图1,在平面直角坐标系中,矩形
的边
,
分别在
轴和
轴正半轴上,连接
.将
绕点
逆时针旋转,得到
,点
的对应点为点
,点
的对应点为点
,且点
在
轴正半轴上,
与
相交于点
,反比例函数
的图象经过点
,交
于点
,点
的坐标是
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/a2dd1cb2-9fb1-4e9d-856e-30925e34e6c7.png?resizew=602)
(1)如图1,k=______,点E的坐标为______;
(2)若P为第三象限反比例函数图象上一点,连接
,当线段
被y轴分成长度比为
的两部分时,求点P的横坐标;
(3)我们把有两个内角是直角,且一条对角线垂直平分另一条对角线的四边形称为“完美筝形”(如图2).设M是第三象限内的反比例函数图象上一点,N是平面内一点,连接
,当四边形
是“完美筝形”时,直接写出M,N两点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16a00ffc890ef8cfc038e5039983773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9fbbd668087e4811900a20e470d9bf.png)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3247f03357462fec934f37c65ebdc77e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/a2dd1cb2-9fb1-4e9d-856e-30925e34e6c7.png?resizew=602)
(1)如图1,k=______,点E的坐标为______;
(2)若P为第三象限反比例函数图象上一点,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
(3)我们把有两个内角是直角,且一条对角线垂直平分另一条对角线的四边形称为“完美筝形”(如图2).设M是第三象限内的反比例函数图象上一点,N是平面内一点,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe21d2f199cb4797e9134994d6deb02.png)
22-23九年级上·山东济南·期中 查看更多[3]
山东省济南市历下区2022-2023学年九年级上学期期中数学试题(已下线)山东省济南市高新区2022-2023学年九年级上学期期末数学试题变式题21-26四川省成都石室锦城外国语学校2023-2024学年九年级上学期12月月考数学试题
更新时间:2022-12-05 20:06:04
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相似题推荐
解答题-问答题
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【推荐1】如图,在平面直角坐标系中,点O为坐标原点,菱形
顶点A的坐标为
.
(2)点D在x轴上,当以B、D、O三点构成的三角形为等腰三角形时,求点D的坐标;
(3)反向延长
,与反比例函数在交于点F,点Q在x轴上的一点,当以F、Q、B三点构成的三角形为直角三角形时,直接写出Q点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5cfe232a7c5c1f61d4605af9e5df93.png)
(2)点D在x轴上,当以B、D、O三点构成的三角形为等腰三角形时,求点D的坐标;
(3)反向延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
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【推荐2】如图,将一矩形OABC放在直角坐标系中,O为坐标原点,点A在y轴正半轴上,点E是边AB上的一个动点
不与点A、B重合
,过点E的反比例函数
的图象与边BC交于点F
若
的面积为
,且
,求k的值;
若
,
,反比例函数
的图象与边AB、边BC交于点E和F,当
沿EF折叠,点B恰好落在OC上,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0504728cd7e5aa07f9e08db6ed092a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acad712bbb422c2d71f1b8bc7168195f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701e8fe74f0afb74b16fc977fed34d86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9452b2c8c06d936957f057a34e07ef73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def4f2e101a80da9bec891ee951b5022.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0504728cd7e5aa07f9e08db6ed092a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3a8deac36e5cdc2d67a0142b5326fb.png)
![](https://img.xkw.com/dksih/QBM/2020/1/11/2374699171266560/2375505862623232/STEM/dfa0d85d2cfb419b8df8dfffd760933f.png?resizew=159)
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【推荐1】如图1,在平面直角坐标系中,点
绕原点顺时针旋转
至点B,恰好落在反比例函数
的图像上,连接OA,OB,过点B作
轴交于点C,点
是第一象限内双曲线上一动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/22/80cbcd7a-9a96-45e9-a4a5-10190f57a3f4.png?resizew=346)
(1)求反比例函数的解析式;
(2)若
,求P的坐标;
(3)如图2,连接PO并延长交双曲线于
,平面内有一点
,PQ与GA的延长线交于点H;
①若
,求点H的坐标;
②当
时,记H的坐标为
,试判断
是否为定值?若为定值,求出该值;若不为定值,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9c730266ecf448c14608e24d37b986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b45db8dd8768994af51206565379fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/22/80cbcd7a-9a96-45e9-a4a5-10190f57a3f4.png?resizew=346)
(1)求反比例函数的解析式;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48761b1d666a08877a3a8bc482634e08.png)
(3)如图2,连接PO并延长交双曲线于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8763f9173aa2a51d46afa3b9e295c9c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e409b944e51fcab5fd2cd987c20fdeb.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709d7a73ce634989e326f88e9373e7be.png)
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【推荐2】如图1,已知点
,
,且a、b满足
,
的边
与y轴交于点E,且E为
中点,双曲线
经过C、D两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/c99a2773-d724-43a5-80f6-f8ff72084960.png?resizew=398)
(1)求k的值;
(2)如图2,点P在双曲线
上,点Q在y轴上,若以点A、B、P、Q为顶点的四边形是平行四边形,试求满足要求的所有点P、Q的坐标;
(3)如图3,以线段
为对角线作正方形
,点T是边
上一动点,M是
的中点,
,交
于N,当T在
上运动时,
的值是否发生改变?若改变,求出其变化范围;若不改变,请求出其值,并给出你的证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c240561788bc63f41a6703219fb66d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b6172c6864957dcb3b92892fad53b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/c99a2773-d724-43a5-80f6-f8ff72084960.png?resizew=398)
(1)求k的值;
(2)如图2,点P在双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
(3)如图3,以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f7cdcbc721fbde7d5bd0afbf07b529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d030bc03d5e8e2bbd79de338a7c375ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e605a9ab715e068a48f3d71cd35dc8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96011b527f818364cfe804a39a0e77a7.png)
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【推荐1】如图1,E是正方形ABCD边AB上的一点,连接BD、DE,将∠BDE绕点D逆时针旋转90º,旋转后角的两边分别与射线BC交于点F和点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/dc3b8de8-d0f4-439a-86f6-a73b91be603f.png?resizew=291)
(1)探究线段BE、BF和DB之间的数量关系,写出结论并给出证明;
(2)当四边形ABCD为菱形,∠ADC=60º,点E是菱形ABCD边AB所在直线上的一点,连接BD、DE,将∠BDE绕点D逆时针旋转120º,旋转后角的两边分别与射线BC交于点F和点G.
①如图2,点E在线段AB上时,请探究线段BE、BF和BD之间的数量关系,写出结论并给出证明;
②如图3,点E在线段AB的延长线上时,DE交射线BC于点M.若BE=1,AB=2,直接写出线段GM的长度.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/dc3b8de8-d0f4-439a-86f6-a73b91be603f.png?resizew=291)
(1)探究线段BE、BF和DB之间的数量关系,写出结论并给出证明;
(2)当四边形ABCD为菱形,∠ADC=60º,点E是菱形ABCD边AB所在直线上的一点,连接BD、DE,将∠BDE绕点D逆时针旋转120º,旋转后角的两边分别与射线BC交于点F和点G.
①如图2,点E在线段AB上时,请探究线段BE、BF和BD之间的数量关系,写出结论并给出证明;
②如图3,点E在线段AB的延长线上时,DE交射线BC于点M.若BE=1,AB=2,直接写出线段GM的长度.
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【推荐2】如图1,在矩形ABCO中,OA=8,OC=6,D,E分别是AB,BC上一点,AD=2,CE=3,OE与CD相交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/90872538-ee58-484b-9a21-878c4920e721.png?resizew=332)
(1)求证:OE⊥CD;
(2)如图2,点G是CD的中点,延长OG交BC于H,求CH的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/90872538-ee58-484b-9a21-878c4920e721.png?resizew=332)
(1)求证:OE⊥CD;
(2)如图2,点G是CD的中点,延长OG交BC于H,求CH的长.
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【推荐3】综合与实践
问题情景:数学活动课上,老师出示了一个问题:如图①,在
中,
,垂足为
,
为
的中点,连接
,
,试猜想
与
的数量关系,并加以证明;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/77340e63-4d0d-41a1-a76e-2598b4038c90.png?resizew=526)
(1)独立思考:请解答老师提出的问题;
(2)实践探究:希望小组受此问题的启发,将
沿着
(
为
的中点)所在直线折叠,如图②,点
的对应点为
,连接
并延长交
于点
,请判断
与
的数量关系,并加以证明;
(3)问题解决:智慧小组突发奇想,将
沿过点
的直线折叠,如图③,点
的对应点
,使
于点
,连接
,交
于点
.该小组提出一个问题:若此
的面积为20,边长
,
,求图中阴影部分(四边形
)的面积.请你思考此问题,直接写出结果.
问题情景:数学活动课上,老师出示了一个问题:如图①,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cacb39582d65fba8f8a5364105f4bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a161d8b6f68b751df8d694a6cc562896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/77340e63-4d0d-41a1-a76e-2598b4038c90.png?resizew=526)
(1)独立思考:请解答老师提出的问题;
(2)实践探究:希望小组受此问题的启发,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cacb39582d65fba8f8a5364105f4bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b227b38b45b5fce63a6bdad8adf113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288abe01824f42cfe725509af5aec4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc3e8a1475b983d1a4295db0e16d4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
(3)问题解决:智慧小组突发奇想,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cacb39582d65fba8f8a5364105f4bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7856b843caf384fca612ce663f21c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06be8affe1a443293fcfb8c271e824ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dc9f8e47e78b7f4ab2dd9cd559f601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42198b8e646ccfbbec323fd364c4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9eeee83b4b7c6ceac7828ff534ce15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cacb39582d65fba8f8a5364105f4bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77cd4ee74454efb1d5e6556b26244a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6bd11ed87bbdde3f5c59e6c253af75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb43c2b28e7870faa57fc1bcfd51b78.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】如图1,在
中,
,
,
,P为
上一动点.
的长;
(2)若动点P满足
,求
的值;
(3)如图2,若D为
的中点,连接
,以
为折痕,在平面内将
折叠,点A的对应点为
,当
时,求
的长;
(4)如图3,若E为
边上一点,且
,连接
,将线段
绕点E沿逆时针方向旋转
得线段
,连接
,直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0763b031b7e6b6d87ce3554ac482d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3568f51bde4e391c8f08ff3d55989aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)若动点P满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be548eae5e751a959676a373389ca2b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e03ed2686de3fa2fe72c437c0dc644.png)
(3)如图2,若D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc7f4a643510bf9f0e74148222ca79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(4)如图3,若E为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc63ac949336bc7f62634f359a8593c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15febfda66e733f14aa7115ed4343a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】【教材呈现】如图,在
中,点D、E分别是
与
的中点.则
与
的关系是
,
;
中,点O为
的中点,点M为
边上一动点,点N为
的中点,连结
、
、
.
,
与
的数量关系是____________.
【应用】如图2,在
中,
,
,
、
是
的中线,M、N分别是
和
的中点,求
的长;
【拓展】如图3,在平行四边形
中,点E为
边上一点,连接
,点P在
上,
,点G是
的中点,连接
交
于点F,若点F为
的中点,
,连接
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950e82a0f9712457f2dd9f8a93f8a217.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.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/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ce32435647d7324b3c40a3fa758fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e98e38cebc8600ba35288258fdfe462a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244bba070922ceddf4ce3d7ec15c40ec.png)
【应用】如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
【拓展】如图3,在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc7e41b23315231032d849b857fb904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48154acabd6b265753a4adb012f2ead9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0a538a73dd30cfcb47455e37bfb4cc.png)
您最近一年使用:0次