如图是由边长为1的小正方形组成的
网格,已知点A,B,C均为格点,仅用无刻度的直尺在给定网格中按下列步骤完成画图,并回答问题(格线的交点称为格点,保留画图过程的痕迹).
(1)图中
的面积为________;
(2)在图1中作出
的高
;
(3)在图2中的
边上找一点E,使
;
(4)在(3)的条件下,已知
,在图2中的
边上找一点F,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457500c8671529bb71714b31028e88d5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/19/744726c4-ef69-4592-a619-56d89e1bd41d.png?resizew=337)
(1)图中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)在图1中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(3)在图2中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ea43b6b329aec399be198a63287a6a.png)
(4)在(3)的条件下,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01009f2f3a3476fd1efe90291083132.png)
更新时间:2023-12-10 08:27:49
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知:如图,在
中,
,
,
,
,
与
相交于点G.
(1)
的长;
(2)
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51b89f545616ef48f3706850107ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328a79d5f45baa162bf1e6bb2d4fc6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b686b84b7a2b8e2326dbb88af5e855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在
中,
的角平分线交
于点D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/54797cfa-f0eb-4e94-a926-08d8f15c881e.png?resizew=149)
(1)用尺规完成以下基本作图:作
的垂直平分线分别与
、
、
交于点E、点F、点H.(保留作图痕迹,不写作法)
(2)在(1)所作的图形中,连接
、
,完成下面证明
的过程.
证明:∵
的角平分线交
于点D,
∴
______.
∵
垂直平分
,
∴
,
______,______,
∴
,
∴
,
∴
______
.
∴
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/54797cfa-f0eb-4e94-a926-08d8f15c881e.png?resizew=149)
(1)用尺规完成以下基本作图:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/03902478df1a55bc99703210bccab910.png)
(2)在(1)所作的图形中,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f43ee6bef36a3a67b497cb2e67f4df.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c46783b77cce2bd4b45b9acc61884.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4790b2cd75df9633fe25e9df427cc441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97628c76d57d4314682a1fd51fa9750.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28580daa12f77508922012510f533db.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0780d075235fe5a85b550d06df0edef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9039defba7c11afba53baa22392b676.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f43ee6bef36a3a67b497cb2e67f4df.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】图①、图②、图③均是
的正方形网格,每个小正方形的顶点称为格点.点A、B、C均为格点.只用无刻度的直尺在给定的网格中,分别按下列要求画图,保留作图痕迹.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/068b382d-c939-49bd-bc61-46b21340fb35.jpg?resizew=429)
(1)在图①中,以
为腰画一个等腰直角三角形;
(2)在图②中,画
的高线
:
(3)在图③中,在
边上找一点E,连结
,使得
平分
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954253b16a82489bb0e152543428c68a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/068b382d-c939-49bd-bc61-46b21340fb35.jpg?resizew=429)
(1)在图①中,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在图②中,画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)在图③中,在
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】在
的方格纸中,点A,B,C,D,E,F分别位于如图所示的小正方形的顶点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/90b092e7-e83a-4c22-9427-5d2ffd2aa243.png?resizew=174)
(1)从C,D,E,F四点中任意取一点,以所取的这一点及A,B为顶点画三角形,则所画三角形是等腰三角形的概率是______.
(2)从C,D,E,F四点中任意取两个不同的点,以所取的这两点及A,B为顶点画四边形,求所画四边形是平行四边形的概率(用树状图或列表求解).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777d8fccf0cf8b55a68488fe48b78744.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/90b092e7-e83a-4c22-9427-5d2ffd2aa243.png?resizew=174)
(1)从C,D,E,F四点中任意取一点,以所取的这一点及A,B为顶点画三角形,则所画三角形是等腰三角形的概率是______.
(2)从C,D,E,F四点中任意取两个不同的点,以所取的这两点及A,B为顶点画四边形,求所画四边形是平行四边形的概率(用树状图或列表求解).
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,在边长为
个单位长度的小正方形网格中建立平面直角坐标系,已知
的顶点
的坐标为
,顶点
的坐标为
,顶点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/e1421dcd-aa87-4f4f-85f1-3243e6709d78.png?resizew=231)
(1)求
的面积;
(2)若把
向上平移
个单位长度,再向左平移
个单位长度得到
,请画出
;
(3)若点
在
轴上,且
的面积与
的面积相等,请直接写出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bde5515b0248ce34eb032a051970d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10b8247386eae0098b619baecd6902d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf681f52df7eb2b51a4fdeeb2e53c49b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/e1421dcd-aa87-4f4f-85f1-3243e6709d78.png?resizew=231)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061989be1f8110209a399bfc3a3b49b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061989be1f8110209a399bfc3a3b49b6.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313a344dde13904465840dac8caaa941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图为
的正方形网格,每个小正方形的边长均为1,小正方形的顶点叫做格点.已知A、B、C、D均为格点,按要求解答:
的形状为__________(按边分);
的形状为__________(按角分);
(2)画
的平分线与
的延长线交于点E,连接
,请直接写出
与
的长度比为__________;
(3)请画出
的
边上的中线
,请直线写出
与
的面积比为__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d009739b5b5362c7902eeeada94adb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
(2)画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(3)请画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13668f033d00acfc366f7e47949c4462.png)
您最近一年使用:0次