已知
,
的垂直平分线与
的角平分线交于点
,过点
作
交
的延长线于点
,
于点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62ca3d0dd0057a11181c43aeb6b40b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d276d0010fd458383ea3dd61415e1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/ae1e76a7-8cee-4c75-9bf1-67b03be68116.png?resizew=238)
18-19八年级下·四川达州·期末 查看更多[9]
四川省渠县第一中学2018-2019年度第二学期八年级下册数学期末第二次模拟测试安徽省泗县中学2019-2020学年八年级下学期第一次月考数学试题甘肃省白银市会宁县2019-2020学年八年级下学期期中数学试题(已下线)【新东方】 fy007山东省菏泽市牡丹区2020-2021学年八年级下学期期中数学试题(已下线)专题09 角平分线与线段的垂直平分线结合-【微专题】2022-2023学年八年级数学上册常考点微专题提分精练(浙教版) 福建省南平市顺昌县2022-2023学年八年级上学期过程性诊断练习(二)数学试题福建省福州市马尾区琅岐中学2021-2022学年八年级上学期期末数学试卷福建省福州琅岐中学2021-2022学年八年级上学期期末数学试题
更新时间:2022-12-27 16:24:03
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相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在△ABE中,
,点D、C是△ABE内部的两个点,连接AD、AC,
,且
,连接DE,BC,DE、BC交于点O.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/6d2431e2-df8b-45a9-8410-00292fe07b27.png?resizew=415)
(1)如图1,求证:
;
(2)如图2,若
,连接OA,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0c210663eac8b99458525f6e0762b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1654d8472d4d2f44f54d5c1f925cd847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab3984419a6ffef093f2ab37705e85a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/6d2431e2-df8b-45a9-8410-00292fe07b27.png?resizew=415)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20de715af16e7630b9b7bc6d99a2dff2.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5038add344ff7293c0f67f14d2611f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c134d6e6c8a91aeac26d517455786.png)
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解答题-证明题
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适中
(0.65)
名校
【推荐2】如图,在
中,
,
的平分线交
于点
,
为
上的一点,
,以
为圆心,
长为半径作
,
,
.
(1)求证:
是
的切线;
(2)求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3620030e8808da46df97330103827913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c72c070f4f4d2b44927391b59a1e755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbe8d40eec67fbc98d2a8878f363a43.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/26/140a866a-2552-485f-b4a5-c4ab7a4ff47f.png?resizew=112)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c72c070f4f4d2b44927391b59a1e755.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-问答题
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适中
(0.65)
【推荐1】如图,在ΔABC中,∠ABC与∠ACB的角平分线交于点O,过点O作DE
BC,分别交AB、AC于点D、E.若ΔADE的周长为7,ΔABC的周长为12,求BC的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899318792110080/3025117537337344/STEM/e323687a18014d6581e94a501e55c6c0.png?resizew=170)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,已知在
中,
.
实践与操作:(1)尺规作图过点A作直线
的垂线
,垂足为D.(保留作图痕迹,不写作法,标明字母)
猜想与验证:(2)在(1)所作的图中,若
平分
,试猜想
与
之间的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c554100e16141964f74a5a743f6b29e.png)
实践与操作:(1)尺规作图过点A作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
猜想与验证:(2)在(1)所作的图中,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e1b0737ba5857c8df6a9669ca5d104.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ddd489ccf19de727b1da4e62c3db9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/1a0b453b-1678-40a7-9f04-f83153830888.jpg?resizew=99)
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解答题-问答题
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适中
(0.65)
名校
【推荐1】如图,在平面直角坐标系中,△ABC的顶点A的坐标为(0,﹣1),顶点B在x轴的负半轴上,顶点C在y轴的正半轴上,且∠ABC=90°,∠ACB=30°,线段OC的垂直平分线分别交OC,BC于点D,E.
(1)点C的坐标;
(2)点P为线段ED的延长线上的一点,连接PC,PA,设点P的横坐标为t,△ACP的面积为S,求S与t的函数关系式;
(3)在(2)的条件下,点F为线段BC的延长线上一点,连接OF,若OF=CP,求∠OFP的度数.
(1)点C的坐标;
(2)点P为线段ED的延长线上的一点,连接PC,PA,设点P的横坐标为t,△ACP的面积为S,求S与t的函数关系式;
(3)在(2)的条件下,点F为线段BC的延长线上一点,连接OF,若OF=CP,求∠OFP的度数.
![](https://img.xkw.com/dksih/QBM/2018/12/27/2105769056985088/2109565447159808/STEM/e6d84bf707d84d6ca1a3602eaab8516e.png?resizew=440)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,在
中,
,
的平分线交
于点E,沿
将
折叠后,C与
边的中点D重合,若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14960e0e112a1150f8d56c892e6c077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/a51a4c2f-7a2e-4771-b098-9e0a9982e192.png?resizew=141)
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