如图,
,
,
分别为
,
上的点,且
,连接
,分别与
,
相交于点
,
.若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/fa6eff37add6c3f85cb97488d0135b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22557378e5d3dd181070ca27ff953f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/25/512d3905-bdd1-42ad-8f79-74f90e7e2d2f.jpg?resizew=164)
22-23八年级上·安徽滁州·期末 查看更多[2]
更新时间:2023-12-25 09:00:57
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】如图,将
绕点A逆时针旋转
,得到
与
交于点O,若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225803a7818b0985a1b96d8e0a627251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49d90154855172aee1985436c677b55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ffef5b03f222606683bba937060d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dceb5cc71fc50f20649f6b9535fd914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6344778ed1e75c1a99e2268468081867.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/9a646a28-ced6-4c6e-a123-a5e00d0c4dd9.png?resizew=179)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】完成下列证明.
已知:
,连接AD并延长交BC于点F,
.
求证:
.
证明:∵
(________),
又∵
,
∴
(________),
∴
________(________)
∴
(________).
又∵
,
∴
(________)
∴
.
已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7338856efe43dac491864dc1e9bdde90.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50cc9350a6e5e32b44fe509562afcbe.png)
又∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91468aa8289eb6d36bd5991b5daddb94.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002cc6a0373255f39172cdee62fb6b39.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b96a3c1eea538ceea8ef695124afd7.png)
又∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4354365ca0929f8a606ed0bf341e4ca.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7338856efe43dac491864dc1e9bdde90.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/17/34edbe9f-14e9-4bb8-80f3-d797e6fb73b0.png?resizew=150)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】已知.如图,在□
中,延长
至点
,延长
至点
,使得
,连接
,与对角线
交于点
,求证,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf2e3236ea30ee2c37928b98041f13a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/6f156d1e-64e2-4882-a6c0-be794d79b3bc.png?resizew=245)
您最近一年使用:0次