![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f75e575cbfaea176d9fc9a019c0426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713af79078f922ea4c71be653c373a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
更新时间:2024-03-08 11:38:27
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【推荐1】如图,在▱ABCD中,CE平分∠BCD,交AB于点E,EA=3,EB=5,ED=4,则CE的长是___ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/5/d53f6a82-200a-41a0-9495-05ad88fcc46e.png?resizew=186)
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【推荐2】蜜蜂被认为是自然界中最杰出的建筑师,单个蜂巢可以近似地看作是一个正六边形.如图,正六边形的半径
是2,则这个正六边形的边心距
为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4cd68cc82e90a5e2049a7ea3171b84.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/2/11028b81-6cb2-4faf-adbf-7b6fedb43d5d.png?resizew=287)
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【推荐2】如图,线段AB是⊙O的直径,弦CD丄AB,∠CAB=20°,则∠AOD等于___
![](https://img.xkw.com/dksih/QBM/2017/9/13/1773295869534208/1774642259402752/STEM/aab217196ae24b91ae476800748eae82.png?resizew=123)
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