已知一个长为
,宽为
的矩形
,将它的长增加8、宽增加
得到一个新矩形
,且矩形
的周长是
周长的3倍(如图).同时,矩形
的面积和另一个一边长为
的矩形
的面积相等,则
的值( )
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670871835033600/2671364690657280/STEM/61ba71095fab490cb8e8f488fc236ce6.png?resizew=188)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608dff63a69d436c8cf3c92383a34cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e124b545e77c37bcebd96b50073fa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490f569c75c1a7c3a47945eb4774d2fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670871835033600/2671364690657280/STEM/61ba71095fab490cb8e8f488fc236ce6.png?resizew=188)
A.![]() ![]() | B.![]() | C.![]() | D.不能确定 |
19-20七年级下·浙江·期末 查看更多[1]
(已下线)【新东方】初中数学1108【2020年】【初一下】
更新时间:2021-03-19 15:44:56
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