如图所示的是由6个形状、大小完全相同的小长方形组成的大长方形网格(每个小长方形的宽都是1),小长方形的顶点称为这个长方形网格的格点,请仅用无刻度的直尺在长方形网格中完成下列作图.
(2)在图2中作一个面积为5的正方形;
(2)在图2中作一个面积为5的正方形;
更新时间:2022-04-12 08:52:41
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解答题-问答题
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【推荐1】如题,平面上四个点A,B,C,D,按要求完成下列问题:
(1)连接线段AD,BC;
(2)画射线AB与直线CD相交于E点;
(3)在直线CD上找一点M,使线段AM最短,并说明理由.
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解答题-作图题
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【推荐2】如图,在
中,
.
(1)用直尺和圆规按下列要求作图:①作
的平分线
,交
于点D;②在边
上截取线段
,使得
,连接
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(2)求证:
平分
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/744daee5-1ba2-4f74-b541-9179449d509f.png?resizew=160)
(1)用直尺和圆规按下列要求作图:①作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30e50e094cd2849e38859b36aad0b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
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解答题-作图题
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【推荐2】如图△ABC中,∠ACB=
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(1)尺规作图(保留作图痕迹,不写作法)
在线段AB上取一点O,使AO=BO,并连结CO
(2)求线段CO的长度
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(1)尺规作图(保留作图痕迹,不写作法)
在线段AB上取一点O,使AO=BO,并连结CO
(2)求线段CO的长度
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解答题-作图题
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【推荐1】如图,正方形网格中每个小正方形边长都是1,小正方形的顶点称为格点,在正方形网格中分别画出下列图形:
的线段
,其中
、
都在格点上
(2)面积为5的正方形
,其中
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、
、
都在格点上
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4056761b8f826eeb6ad8c9a151d3c9c.png)
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(2)面积为5的正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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解答题-证明题
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【推荐2】如图,
,
平分
,直角三角板的直角顶点P在射线
上移动,两直角分别与
相交于点C、D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/195eaa83-9440-43a0-97b9-d4d959e9ca74.png?resizew=151)
(1)求证:
;
(2)若
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
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(1)求证:
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(2)若
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