填空,并在括号里注明理由:
如图,已知点
在直线
上,
是
的平分线,过点
作
的平行线交
于点
,试说明:
.
,所以
______(______),
因为
,所以
______(______),
因为
是
的平分线,所以
(______),所以
,
因为
,
,所以
(______).
如图,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e7f10e0c8af2d0d02a685f6f19e329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efcc643348afa77cc599dd90dde84f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc9039f5759f8e555262e1f8c03ef3d.png)
因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efcc643348afa77cc599dd90dde84f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c89d1931d1678fbeb6f5066f99d7c4d.png)
因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/682dc163baa74e18746d3d52da6cff7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72a047c90864bcd8cd40d537671f3cb.png)
因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6a3a2a7895af6e2b1518c9ae71e1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3d6284abac8213e9bb9656b64f02cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
20-21七年级下·四川成都·期中 查看更多[5]
(已下线)四川省成都市高新区教科院附属中学2020-2021学年七年级下学期期中数学试题山东省青岛市市南区青岛第五十九中学2022-2023学年七年级下学期期中数学试题河南省郑州高新技术产业开发区郑州枫杨、东枫杨联考2022-2023学年七年级下学期6月月考数学试题山东省青岛市青岛大学附属中学2023-2024学年七年级下学期期中数学试题山东省青岛市市南区2023-2024学年七年级下学期期中数学试题
更新时间:2024-05-06 21:42:44
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【推荐1】如图,点A、B、C、D在一条直线上,EA//FB,EC//FD,EA=FB.求证:AB=CD.
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【推荐2】学校进行撑竿跳高比赛,要看横杆
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解答题-问答题
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【推荐1】如图,
,
,垂足分别为D、C,从①
,②
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中选择两个作为补充条件,余下一个作为结论,并写出结论成立的证明过程.
你选的补充条件是 ,结论是 .(填序号)
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你选的补充条件是 ,结论是 .(填序号)
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