如图,已知正方形
边长为1,E为
边上一点,以点D为中心,将
按逆时针方向旋转得
,连接
,分别交
于点M,N,则
的度数为________ ;若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e177717c571706bc4b57763f8cb336c8.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b43490ca09467a4c8cd8cfe91c94e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13668f033d00acfc366f7e47949c4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eb0c11e4b7aa9030a6691aee35eed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3b0b11a80e8b107e55534d7fda9f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc0b0444cdd42b979f6ac5c85eddad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e177717c571706bc4b57763f8cb336c8.png)
![](https://img.xkw.com/dksih/QBM/2022/4/6/2952432086810624/2967813848285184/STEM/73fd8226-f325-4260-b044-47c4a89d6b8d.png?resizew=191)
更新时间:2022-04-28 11:35:38
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【推荐1】在平面直角坐标系xOy中,记直线
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(2)
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【推荐2】如图,正方形
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【推荐1】如图,在菱形ABCD中,点M,N在AC上,ME⊥AD,NF⊥AB,若NF=NM=2,ME=3,则AN=________ .
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【推荐2】如图①,是形如“T”形的拼块,其每个拐角都是直角,各边长度如图所示.如图②,用4个同样的拼块拼成的图案,恰好能放入一个边长为6的正方形中,则
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【推荐1】如图,若AC、BD的延长线交于点E,
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【推荐2】将一对直角三角板如图放置,点C在FD的延长线上,点B在ED上,∠F=∠ACB=90°,AB∥CF,∠E=45°,∠A=60°,AC=8,则CD的长度是_________ .
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