比较大小:
________
;
________
;
________
;
________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0212732f733e20e61b4ece6d4ed18c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea3694a82889efd526b981931eeb29e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a83c5ff6e8d90076a5f9ffa6a7fac69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2b077f2e9d507939aec1980402a33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a94acdfb41489d5694b5a64b9e99754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3103ab28b45aa3b798a04f834560e417.png)
22-23七年级下·河北石家庄·阶段练习 查看更多[2]
更新时间:2023-09-09 11:15:20
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【推荐1】(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)若一个圆的面积与一个正方形的面积都是
,设圆的周长为
.正方形的周长为
,则
______
(填“
”,或“
”,或“
”)
(3)如图2,若正方形的面积为
,李明同学想沿这块正方形边的方向裁出一块面积为
的长方形纸片,使它的长和宽之比为
,他能裁出吗?请说明理由?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
(2)若一个圆的面积与一个正方形的面积都是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f579a0156dc2639ab152b525312d73c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50fd6c48a1b9283aa43f52d23fea4aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d7fc88fe8b7879dd6299834eb4e023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50fd6c48a1b9283aa43f52d23fea4aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d7fc88fe8b7879dd6299834eb4e023.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
(3)如图2,若正方形的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bae66ab94447a52a85917a89dba6484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3441b255f876790ba160401ff5f4251.png)
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【推荐2】已知|x|=
,y是11的平方根,且
>
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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