(1)如图1,分别把两个边长为
的小正方形沿一条对角线裁成4个小三角形拼成一个大正方形,则大正方形的边长为___________
;
(2)图2是
的网格,在坐标平面内,已知
,结合上面的知识完成下列问题:
①建立平面直角坐标系(坐标轴在网格线所在的直线上,不写作法);
②在现有网格中将点
先向右平移2个单位,再向上平移2个单位得到点
,则点
的坐标为___________,
___________;
③请在图3中画出一个面积为8的正方形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/8/02115b7b-85fa-4f08-96fa-e67284a9d996.png?resizew=242)
(2)图2是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb9d60d456560e9bac66c8b20c49bb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
①建立平面直角坐标系(坐标轴在网格线所在的直线上,不写作法);
②在现有网格中将点
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
③请在图3中画出一个面积为8的正方形.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/8/81194c30-7ff9-4a28-baed-045440c338e7.png?resizew=258)
更新时间:2023-07-03 15:21:36
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【推荐1】小玉想用一张面积为
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【推荐2】如图,用4张长为a,宽为
的长方形纸片拼成一个大正方形后,中间恰好是一个小正方形.若大正方形的边长为7,长方形纸片的面积为12.
(2)若长方形纸片的长和宽各增加1,求此时长方形纸片的面积;
(3)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca257288ebd4229902f616f896967c34.png)
(2)若长方形纸片的长和宽各增加1,求此时长方形纸片的面积;
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【推荐1】如图,在平面直角坐标系中,已知B(2,0),小正方形BCDE的边长为1个单位长度,点C在x轴上,以点B为圆心,正方形的对角线BD的长为半径画圆,与x轴交于A、K两点,与直线BE交于点F,G.
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(1)写出点K、F的坐标.
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(3)在y轴上求作一点M,使得S△AMO=2S△GED.保留作图痕迹,并简单说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/a9fa0679-0c6c-45ef-8fa3-d8a4c503df81.png?resizew=280)
(1)写出点K、F的坐标.
(2)求△GED的面积.
(3)在y轴上求作一点M,使得S△AMO=2S△GED.保留作图痕迹,并简单说明理由.
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【推荐2】已知
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/efd29ffb-5261-4b5c-bd14-a717fe3e0cf6.png?resizew=219)
(1)在图中画出
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(2)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6c8170dd3ad55d366c866dfa21c7df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688e997d4de2710f59eb71ad10c83365.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/efd29ffb-5261-4b5c-bd14-a717fe3e0cf6.png?resizew=219)
(1)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】如图1,图2均是
的正方形网格,每个小正方形的顶点称为格点,
顶点均在格点上,要求只用无刻度的直尺,分别按下列要求画图.
(1)在图1中画线段CD,满足
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(2)在图2中线段AC上找一点M,满足
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(1)在图1中画线段CD,满足
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(2)在图2中线段AC上找一点M,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec239838eb56cc566c399ff5bfc5416.png)
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【推荐2】如图,正方形网格中的每个小正方形边长都是1,每个小格的顶点叫做格点.以格点为顶点分别按下列要求画图:
(1)在图1中,画出一个平行四边形,使其面积为6;
(2)在图2中,画出一个菱形,使其面积为4;
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(1)在图1中,画出一个平行四边形,使其面积为6;
(2)在图2中,画出一个菱形,使其面积为4;
(3)在图3中,画出一个矩形,使其邻边不等,且都是无理数.
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【推荐1】如图,平面直角坐标系中,已知点
在y轴正半轴上,点
(其中
),点
在x轴正半轴上,且
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/d40ada5e-f203-4def-aae2-b7b9f3268312.png?resizew=430)
(1)如图1,求证:
;
(2)如图2,当
时,点D在
的延长线上,且
,连接
,射线
交
于点E.当点B在y轴负半轴上运动时,
的度数是否为定值?如果是,请求出
的度数;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db86e0aa40aea260e2c0baf8f3897851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d34bd2e10b34e4149f6459b5ac5196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cd7d46136029a789443fbbb11f5d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f23b0911524892cb1cc808eefcc278d.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/d40ada5e-f203-4def-aae2-b7b9f3268312.png?resizew=430)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6e7b3d0946d17b418482aaf38c87fd.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d5515d5d25dc03af3e84abada231ce.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
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【推荐2】如图,在平面直角坐标系
中,点
的坐标为
等边
经过平移或轴对称或旋转都可以得到
.
![](https://img.xkw.com/dksih/QBM/2022/10/7/3082736170614784/3119934313201664/STEM/fcfe8c1908cd4a24b393931f01b6435c.png?resizew=185)
(1)
沿
轴向右平移得到
,则平移的距离是 个单位长度;
与
关于直线对称,则对称轴是 ;
绕点
顺时针旋转得到
,则旋转角度可以是 度.
(2)连接
,交
于点
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://img.xkw.com/dksih/QBM/2022/10/7/3082736170614784/3119934313201664/STEM/fcfe8c1908cd4a24b393931f01b6435c.png?resizew=185)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d793ac00966fe2f864ab2e96e37cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc5ceed613776047cb83746b7a3fe6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d793ac00966fe2f864ab2e96e37cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abddd22e75ea5093677c3d0ce0b6d750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d793ac00966fe2f864ab2e96e37cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6a0b03ad3cf1b296001950dd3fcf62.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b5c16dc0a6049b55c9949fca02a82d.png)
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