如图所示:AC=________ +BC;CD=AD-________ ;AC+BD-BC=________ .
![](https://img.xkw.com/dksih/QBM/2021/11/3/2843273431040000/2843373656604672/STEM/c69e6f1924de4d63a30be38709ca123f.png?resizew=180)
更新时间:2021-11-04 17:52:24
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【知识点】 线段的和与差
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较易
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【推荐1】已知线段
,点
在直线
上,若
,且
为
的中点,则线段![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57b4243fa7f6f9c73d11f3123c42ddb.png)
____________ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43bcd5e742a68fed0bdb6e0ee7d1384f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8346541ec68f4c43abb6628a4f6d62cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57b4243fa7f6f9c73d11f3123c42ddb.png)
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