在正方形网格中,每个小正方形的边长为1,网格中有一个
,该三角形的三个顶点均在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/9982aa4a-c3bb-490e-9d29-fd0804bc4685.png?resizew=159)
(1)在图中作出
关于直线
对称的
;
(2)若
是直线
上一点,则
的最小值是__________;
(3)图中若有格点
满足
,则这样的格点
有__________个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/9982aa4a-c3bb-490e-9d29-fd0804bc4685.png?resizew=159)
(1)在图中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77f931d48d64ce0b606bc4674d5e0dc6.png)
(3)图中若有格点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb96e0331eebe80ed1ff610faf531fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
更新时间:2024-01-27 12:31:12
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【推荐1】如图,四边形ABCD中,AB=AD,点B关于AC的对称点B'恰好落在CD上,若∠BAD=α,则∠ACB的度数为?
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【推荐2】如图,已知
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(1)求证:
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(2)若
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(1)求证:
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5284a2e5ee98c9cf7e98806138435a.png)
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(3)若
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解答题-问答题
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适中
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【推荐1】如图,在方格纸上的每个小正方形的边长都是1,点
,
,
,
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![](https://img.xkw.com/dksih/QBM/2021/5/8/2716649625788416/2782334718386176/STEM/824f52e1-a464-4c03-9199-805a45d6fc5e.png)
(1)
和
都是直角三角形吗?为什么?
(2)由(1)能判定
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,
三点在一条直线上吗?说明理由;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
(2)由(1)能判定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
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解答题-作图题
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适中
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【推荐2】如图,在下列14×7的网格中,横、纵坐标均为整数的点叫做格点.
(1)直接写出△ABO的形状;
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第一步:在x轴上找一个格点E,使OE=OB;
第二步:找一个格点F,使∠EOF=∠AOB;
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第一步:在x轴上找一个格点E,使OE=OB;
第二步:找一个格点F,使∠EOF=∠AOB;
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/ec757b7d-f073-4232-b742-c484019938b9.png?resizew=271)
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解答题-作图题
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名校
【推荐1】如图,方格纸中的每个小方格都是边长为1个单位的正方形,在建立平面直角坐标系后,△ABC的顶点均在格点上,点B的坐标为(1,0).
![](https://img.xkw.com/dksih/QBM/2022/9/28/3076117784838144/3077594044366848/STEM/8d8279107e6442639d4311fb3bee527a.png?resizew=272)
(1)画出△ABC关于x轴对称的△
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(2)画出与△ABC关于原点对称的△
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的坐标.
![](https://img.xkw.com/dksih/QBM/2022/9/28/3076117784838144/3077594044366848/STEM/8d8279107e6442639d4311fb3bee527a.png?resizew=272)
(1)画出△ABC关于x轴对称的△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)画出与△ABC关于原点对称的△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dc97d6060d7bdcd077a4803545ec77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20436ae8b66116ea83c49a83cc840426.png)
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解答题-作图题
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名校
【推荐2】如图,
三个顶点的坐标分别为
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、
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(1)若
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(2)若
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(2)若
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