如图,
的边
上的中点分别是
,且
cm,
cm,则四边形
的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a6936a0a7379a7dd2331182696712a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695b0b58e60dd3d2da6388848d373a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/10/63c36056-bc7b-47bc-8043-4f2a1232374b.png?resizew=142)
A.9 cm | B.10 cm | C.11 cm | D.12 cm |
更新时间:2023-07-17 14:09:35
|
【知识点】 与三角形中位线有关的求解问题解读
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【推荐1】如图,平行四边形
的对角线
相交于点
的平分线与边
相交于点
是
中点,若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60af334f6deb7005c26becaba58add0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e6e0bfb13d3403be93723a9915c07a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b9d7b2e447ba4063151f932ae38238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90c780dac29ff8b7df5881d3b33abab.png)
A.1 | B.2 | C.3 | D.4 |
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较易
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【推荐2】如图,D是△ABC内一点,BD⊥CD,E、F、G、H分别是边AB、BD、CD、AC的中点.若AD=10,BD=8,CD=6,则四边形EFGH的周长是( )
![](https://img.xkw.com/dksih/QBM/2020/1/18/2379565112623104/2381036674277376/STEM/01effacda8ac48839b47b41480fa94ee.png?resizew=112)
![](https://img.xkw.com/dksih/QBM/2020/1/18/2379565112623104/2381036674277376/STEM/01effacda8ac48839b47b41480fa94ee.png?resizew=112)
A.24 | B.20 | C.12 | D.10 |
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