如图,在
中,
,
,请观察尺规作图的痕迹(
,
,
分别是连线与
边的交点),则
的度数是__________ °.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4e7eaee73a42ad47a4adf5261ee761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa5348d4f108ee808372591ff5f4fb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e7106619c08f2bcc1d21f846e8a0de.png)
更新时间:2024-05-29 12:50:10
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【推荐2】如图,在
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【推荐1】如图,在平行四边形
中,
,以点B 为圆心,
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【推荐2】已知:
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①_________________________________________________________________ .
②_________________________________________________________________ .
③_________________________________________________________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
①
②
③
![](https://img.xkw.com/dksih/QBM/2018/2/12/1880557110534144/1881065110986752/STEM/b83c87bf-cfc2-4b3f-9579-06a9d32ee3c9.png)
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【推荐1】如图,等腰三角形
的底边
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分别交
,
于点E,F.若点D为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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【推荐2】如图,在
中,
的垂直平分线交
于E,交
于D,连接
.若
,
的周长为
,则
的长为_____
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】如图,在等腰
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【推荐2】如图,在
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