如图,
中,AB=a,BC=2a,∠B=90°,将
沿BC方向平移b个单位得
(其中A,B,C的对应点分别是D,E,F),设DE交AC于点G,若
的面积比
的大8,则代数式
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbd6f0a0412d0f43ce1f7c1d530e56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f3197779e26c71a1b633b279613969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326c86ea01242c951562a6191ea457db.png)
![](https://img.xkw.com/dksih/QBM/2020/6/16/2485792720084992/2492321307156480/STEM/b4996309af174f8186568f4c00b920c1.png?resizew=262)
更新时间:2020-06-25 16:23:35
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【推荐2】如图,将△ABC沿AC所在的直线平移到△DEF的位置,若图中AC=10,DC=6,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1fce5acb99c537df69d9d66141305.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1fce5acb99c537df69d9d66141305.png)
![](https://img.xkw.com/dksih/QBM/2022/2/28/2926199221288960/2931052886532096/STEM/e478c768c3b249a686a549c00b1e0f66.png?resizew=139)
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