如图,等边三角形纸片
中,点
在边
(不包含端点
,
)上运动,连接
,将
对折,点
落在直线
上的点
处,得到折痕
;将
对折,点
落在直线
上的点
处,得到折痕
.
,求
的度数;
(2)试问:
的大小是否会随着点
的运动而变化?若不变,求出
的度数;若变化,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0612708c980c4e8927fe8b0c5b11ff26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384da7acfefa7c656eaca2df173f0cb6.png)
(2)试问:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
23-24七年级上·吉林白山·期末 查看更多[3]
(已下线)吉林省白山市江源区2023-2024学年七年级上学期期末数学试题(已下线)考题猜想06 七年级期中必刷题(拔高必刷51题17种题型)-2023-2024学年七年级数学下学期期中考点大串讲(苏科版)(已下线)暑假作业02 认识三角形、多边形的内角和与外角和(知识梳理+11大题型+拓展突破)-【暑假分层作业】2024年七年级数学暑假培优练(苏科版)
更新时间:2024-01-13 18:46:31
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【推荐1】如图,直线
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解答题-问答题
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【推荐2】如图,直线
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解答题-作图题
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【推荐1】已知三角形纸片
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交于点
、
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、
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的面积为4,求
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(2)连接
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解答题-证明题
|
较易
(0.85)
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(3)
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