如图(1),在三角形ABC中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fcde7cf117adeeebca1674d3a49352b.png)
,BC边绕点C按逆时针方向旋转
,在旋转过程中(图2),当
时,旋转角为__________ 度;当
所在直线垂直于AB时,旋转角为___________ 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fcde7cf117adeeebca1674d3a49352b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91656295d24cbd0c89a2c4f8d15a9181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461bbaf8cba66ba71200155e9490b5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20255574111ef65acc7b09ddb523ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffb952f86442845da723fd291564484.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/28/9956ea33-0e37-42ad-9f3d-0a4ad60d907e.png?resizew=365)
19-20八年级上·河北邢台·期末 查看更多[4]
河北省邢台市南宫市2019-2020学年八年级上学期期末数学试题(已下线)八年级期末押题05-2020-2021学年八年级数学下学期期末专项复习(北师大版)(已下线)专题3.1 图形的平移与图形的旋转-【帮课堂】2022-2023学年八年级数学下册同步精品讲义(北师大版)(已下线)专题23.1 图形的旋转(知识梳理与考点分类讲解)-2023-2024学年九年级数学上册基础知识专项突破讲与练(人教版)
更新时间:2020-10-07 18:44:05
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【推荐1】如图1,有一个足够长的矩形纸片
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【推荐2】如图,已知AB∥CE,∠B=50°,CE平分∠ACD,则∠ACD=__ °
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【推荐1】如图,已知点
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【推荐2】如图,在平面直角坐标系
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