如图,在
中,
于点D,点E是
上一点,过点E作
于点F,点G是
上一点,且
.
的理由.
(2)若
,
平分
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae94174cadb3e1c04e55773463895c2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35cdc98e4f82c03e589051873f65396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
更新时间:2024-05-05 15:05:38
|
相似题推荐
解答题-作图题
|
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【推荐1】如图,P,Q分别是直线
外两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/36f8775f-af4e-43d8-af72-cc9cf22323f2.png?resizew=147)
(1)过点P画直线
,过点Q画直线
;
(2)
与
有怎样的位置关系?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/36f8775f-af4e-43d8-af72-cc9cf22323f2.png?resizew=147)
(1)过点P画直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333ab24c4935210f4c232cd0c0fae358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9390a8688fd466fb6b883b0d60dcd872.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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解答题-问答题
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【推荐2】如图1,
,点P为直线
上方一点.
,
,则
度数为______;
(2)猜想
、
、
所满足的数量关系,并说明理由;
(3)如图2,
,若点P为直线
下方一点,此时
、
、
满足怎样的数量关系?如图3,
,若点P在直线
和直线
之间,此时
、
、
又满足怎样的数量关系?请你在图2和图3中任选一个直接写出你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac05da2814b773cef9628d7efff4f8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef586e179a8ce4b75904f54220e567f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bafaec1cbb31d644a0df6bbd4fe4f0.png)
(2)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bafaec1cbb31d644a0df6bbd4fe4f0.png)
(3)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bafaec1cbb31d644a0df6bbd4fe4f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bafaec1cbb31d644a0df6bbd4fe4f0.png)
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解答题-问答题
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名校
【推荐1】如图,已知
三点在同一直线上,
.
![](https://img.xkw.com/dksih/QBM/2021/4/9/2696379403362304/2696655621087232/STEM/e79a2750-6fc2-4c0b-b4c4-4bb4bddecab9.png?resizew=313)
(1)说明
的理由.
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67702da6a71091fbdde8f0d52edc4bd1.png)
![](https://img.xkw.com/dksih/QBM/2021/4/9/2696379403362304/2696655621087232/STEM/e79a2750-6fc2-4c0b-b4c4-4bb4bddecab9.png?resizew=313)
(1)说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73c8a92b36b72cc4441fd0a9013f841.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab23d8d2a0061ce58c9f0844e3441661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685516a27697104e83b311d76efa17aa.png)
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解答题-证明题
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名校
【推荐2】已知:如图,
,试说明
.
(已知)
( )
(已知)
_________.(等量代换)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a76f0aa5bd3364fe01ebc7fb3d86b7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dceb5cc71fc50f20649f6b9535fd914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cc741b6fba7ce725bf7bb6270c8ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99fafe02eb739dc79bd9d6036c06a4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c5b6a1d2e583a15ef5ec1d56a60506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783fcf5332eea67e81498764012b586f.png)
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