如图每个小方格都是边长为1的小正方形,则正方形A的面积是_____ ,正方形B的面积是_____ ,正方形C的面积=边长为7的正方形与4个直角边为_____ 的直角三角形的面积差为_____
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/5/f94f86b5-5aa6-4405-9061-718478c4c5aa.png?resizew=148)
22-23八年级下·全国·假期作业 查看更多[1]
(已下线)第04讲 勾股定理-【寒假自学课】2023年八年级数学寒假精品课(人教版)
更新时间:2022-01-09 07:50:34
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【推荐1】如图,若
与
都是正方形网格中的格点三角形(顶点在格点上),则
与
的相似比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/1b947e35-3eb0-42ae-b2ca-7b1fa006c3cc.png?resizew=214)
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【推荐2】如图,将正方形
放在边长为
的正方形网格中,点
,
,
,
均落在格点上,能够完全覆盖正方形
的最小圆面的半径是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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