如图所示,由正方形组成的
的网格中,每个小正方形的顶点称为格点.等腰直角三角形
的顶点均为格点,点M在线段
上.请你仅用无刻度直尺按要求完成作图,作图痕迹用虚线表示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/03754450-74c7-4d3f-99fc-d27b7ed98b6f.png?resizew=223)
(1)作正方形
;
(2)作线段
的中点O;
(3)作线段
,且
,点E在线段
上;
(4)在
上作点N,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444b1ac03dca1c2580e5a9e73c541dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/03754450-74c7-4d3f-99fc-d27b7ed98b6f.png?resizew=223)
(1)作正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)作线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(3)作线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595d4d862ff9b267dc59e0523a7483c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860526d66d2cf2c5149896c8b1943e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(4)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049ba02a6816033ade98e679a59a3b24.png)
更新时间:2023-04-19 18:19:41
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】在
中,
.
(1)如图1,求点C到边
的距离;
(2)点M是
上一动点,
①如图2,过点M作
交AC于点N,当
时,求
的长;
②如图3,连接
,当
为何值时,
为等腰三角形?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a89773ee15cd1a5b9c4086aff56c802.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/80ef8d3c-9313-4755-91f5-a652572319d6.png?resizew=355)
(1)如图1,求点C到边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)点M是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①如图2,过点M作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f479d987bc7abd828c64f9dc745836ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa7562aea95da83cd6c0c2d06dbbae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
②如图3,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f955e5cc9f108de6f3ca01e5eb84c52e.png)
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【推荐2】【问题探究】
(1)如图①,在四边形
中,
,在
边上作点
为一点,连接
,
,使得
(画出一个点
即可,要求用尺规作图,保留作图痕迹,不要求写作图的证明);
(2)如图②,在四边形
中,
,
,
,点
为
上一点,连接
,
,
,试判断
与
之间的数量关系,并说明理由;
【问题解决】
(3)如图③,四边形
是赵叔叔家的果园平面示意图,点
为果园的一个出入口(点
在边
上),
,
为果园内的两条运输通道(通道宽度忽略不计),经测量,
,
,
,
米,赵叔叔计划在
区域内种植某种果树,并沿
修建一条安全栅栏,为提前做好修建安全栅栏的预算,请你帮赵叔叔计算出
的长度.
(1)如图①,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41aba1711910c6f533cc94319104f4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fc5653b8818c02e71dc54027b175256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)如图②,在四边形
![](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/5a16dc02090b6e9263555061f14fbc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998329f9cdb86f5d60d7d5d70fc3781e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2573d44bd027ab2e2fc2472c7852af8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
【问题解决】
(3)如图③,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a277db452e76240ec83ec6a2864bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e523c333e8b71d26f7d89932229a3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73a7c3f5045c0c228a5acb078c49007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
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解答题-证明题
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(0.65)
名校
【推荐1】如图,在平行四边形
中,对角线
相交于点O,
,点E在线段
上,点E为
的中点.
![](https://img.xkw.com/dksih/QBM/2023/7/21/3285590512918528/3288745150431232/STEM/2b51989c27a543ff873a3c24feea79ee.png?resizew=189)
(1)求证:
;
(2)若F,G分别是
的中点;
①求证:
是等腰三角形;
②当
时,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d6ceed6e5a36193bcb5a557853dbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://img.xkw.com/dksih/QBM/2023/7/21/3285590512918528/3288745150431232/STEM/2b51989c27a543ff873a3c24feea79ee.png?resizew=189)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79711a574d9bd1faec5b67db57ad13e.png)
(2)若F,G分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd89207fd032c16774744514a4b8458.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c244583cbedf99147b762e86c22dc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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解答题-作图题
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【推荐2】网格中,我们把各顶点都在格点上的三角形称为格点三角形.如图是边长为1个单位的小正方形组成的网格,已知△ABC,AB=
,BC=
,AC=2
,请在这个网格中按要求仅用无刻度的直尺作图(保留作图痕迹,不写作法);
(1)画出格点三角形ABC,标上相应字母,并写出△ABC的高AH的长 ;
(2)①画出△ABC的中线AD;
②标出格点E,画线段AE,使AE平分∠BAC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cb9a526f2b146415a98051b4e58b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
(1)画出格点三角形ABC,标上相应字母,并写出△ABC的高AH的长 ;
(2)①画出△ABC的中线AD;
②标出格点E,画线段AE,使AE平分∠BAC.
![](https://img.xkw.com/dksih/QBM/2021/5/7/2715705648783360/2781594213736448/STEM/ed6ad61c-6dbd-4527-8b02-dc84fff2838f.png)
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解答题-问答题
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【推荐1】如图,在
的方格纸
中请按要求画图,且所画格点三角形与格点四边形的顶点均不与点
重合.
(1)在图1中画一个格点
,使点
分别落在边
且
.
(2)在图2中画一个格点四边形
,使点
分别落在边
,
上,且
.注:图1,图2在答题纸上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4061b4f078613a24d3b485c260f1fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddaaabe2ccfa0ab42c1b03d53cd2f6ba.png)
(1)在图1中画一个格点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9756177ef0c7c685e0fc62077a1cd4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ae972324a0b11d7d85f8f290647816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83878843ac4c39470ba101275f2565b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9f4fe60b81ff21ca2acc95848a643d.png)
(2)在图2中画一个格点四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb407367b58f163917ee0f9a447f798a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208b7fcf4f123d27a8011922f1970267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e832a6ca4ea24183fc3759690a5393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c0a975204eaa9210aa2b7e260e7738.png)
![](https://img.xkw.com/dksih/QBM/2019/11/7/2328831752495104/2328867491848192/STEM/780d9b050de64500b4d8f4057de9eed1.png?resizew=441)
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解答题-证明题
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【推荐2】在平面直角坐标系中,四边形OABC是矩形,点A(8,0),点C(0,6),对角线AC、OB相交于点D,点E在x轴正半轴上,连接DE,以BD、DE为邻边作
,连接DF、AF.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/e30e3ebe-564e-4e60-bbc8-87b2deeebaae.png?resizew=529)
(1)如图1,求证:
;
(2)如图2,当四边形BDEF为矩形时,求AF的长;
(3)当
为等腰三角形时,求点F的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c07d54e911c220ab497e659f8ab06c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/e30e3ebe-564e-4e60-bbc8-87b2deeebaae.png?resizew=529)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5622df450ba5b6a90a7ab6711a06e8.png)
(2)如图2,当四边形BDEF为矩形时,求AF的长;
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
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【推荐1】如图,在平面直角坐标系
,四边形
是正方形,
,点
是
延长线上的一点,
是线段
上一动点(不包括
、
),作
,交
的平分线于点
.
(1)直接写出
点的坐标;
(2)求证:
;
(3)如图2,若
,在
上找一点
,使四边形
是平行四边形,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab158dd9e96abcae0f115f54fa66c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c6ba69264c8f203cd756581bc6280a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a9be2f8ba5170eaf0bc4604e021706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d29e7c4d6216690152430b09f9cf0c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/5d5e972f-81db-4ba2-876b-57a461c15175.png?resizew=371)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b920f015c63f066a8ae00e3066b50e20.png)
(3)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7908e8e2ca67ad0f739860222423950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd626b2d9e188e6ce54a766bc05faf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图①、图②、图③均是5×5的正方形网格,每个小正方形的边长都为1,每个小正方形的顶点称为格点,点
均为格点.只用无刻度的直尺按下列要求在给定的网格中画图,所画图形的顶点均在格点上,不要求写画法.
,连接
,使线段
.
(2)在图②中画出等腰
,点
在格点上,使
为顶角且
.
(3)在图③中画出一个面积最大的正方形
.且
均在格点上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
(2)在图②中画出等腰
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a942463f1626ac24741dee55cf1827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05554fc3fab6e31eb62fd6ee60625918.png)
(3)在图③中画出一个面积最大的正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460c70650cd64f4e9373c2120ac9a1ac.png)
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