如图,已知
,
,说明
,阅读下列解答,并填上理由或结论.
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966485352448000/2973397386731520/STEM/871e78210a6b463c9b8398df6517d4f2.png?resizew=147)
解:
(______),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893848e60bcc652d691291e3518a9d17.png)
______(______),
(______).
又
(______),
______
.
______
(______),
(______).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1393308bc68322f50fa29702dd412263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b333110550208ffce4ec642f78075f.png)
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966485352448000/2973397386731520/STEM/871e78210a6b463c9b8398df6517d4f2.png?resizew=147)
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ef0347b083bb3e9bebd969f49e459f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893848e60bcc652d691291e3518a9d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9cd232233fc9fe98254ba50218e907.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c5b6a1d2e583a15ef5ec1d56a60506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2379c011b28d025bab4b48faf32c10ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e519cdb0cac3981d8e9610dba507a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec7db9009b81b9c307fef4331609588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7939ed529b9435463acef7457903dcc5.png)
更新时间:2022-05-06 08:55:22
|
【知识点】 根据平行线判定与性质证明
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解答题-问答题
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适中
(0.65)
【推荐1】如图,在四边形
中,
,点
是边
上一点,且
平分
,
平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/23/16939429-9115-49fe-a542-808350824a47.png?resizew=106)
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/23/16939429-9115-49fe-a542-808350824a47.png?resizew=106)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a48e31deb78dadacc7e128ef3eb2a054.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0487ebca22d4aa1233073f81fd70a424.png)
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