如图,在
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/54cd2345-4cc6-48b9-aaf0-6392723f7aac.png?resizew=134)
(1)若
,则
的度数为______°;
(2)若
,
,求
的半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/54cd2345-4cc6-48b9-aaf0-6392723f7aac.png?resizew=134)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def67a95ed04c24c9870434c35d21172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25936291abb6432ed5a710ebf0ea195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebb33adb2310a6e03918761e68204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
22-23九年级上·江苏南京·期末 查看更多[5]
江苏省南京市玄武区2022-2023学年九年级上学期期末数学试题(已下线)第07讲 圆与对称性(5种题型)-【暑假自学课】2023年新九年级数学暑假精品课(苏科版)(已下线)专题08圆的对称性(4个知识点6种题型1个易错考点2种中考考法)-【帮课堂】2023-2024学年九年级数学上册同步学与练(苏科版)(已下线)第02讲 与圆有关的性质-圆心角定理-【帮课堂】2023-2024学年九年级数学上册同步学与练(人教版)江苏省南京市鼓楼区金陵汇文学校2023-2024学年九年级上学期12月月考数学试题
更新时间:2023-03-09 12:44:10
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,
中,
,
,以
为斜边在
内部作等腰直角三角形
,
为
边上的高,经过
,
的直线交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/03d7e8fa-5e0e-4074-a12f-da4d319a2fe7.png?resizew=202)
(1)求证:
;
(2)求
的值;
(3)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16e9ad26f03636b68578f20dc19e66a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a0d238b6e9b49bbea22a79402e8e4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/03d7e8fa-5e0e-4074-a12f-da4d319a2fe7.png?resizew=202)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/025a9324effb6fc7af086fbaf59af8d5.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557e510640bdf7bd9460d92dcd19b465.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3505caf94539d51c4edba53a78ad0d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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解答题-问答题
|
适中
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名校
【推荐2】如图,直线
与坐标轴分别交于点A,B,与直线
交于点C,线段
上的点Q以每秒1个单位的速度从点O出发向右在x正半轴上作匀速运动,设运动时间为
,连结
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/53f16d80-4b40-403a-b63e-fb0528dd6fc5.png?resizew=162)
(1)求点C的坐标.
(2)若
是等腰直角三角形,则t的值为________;
(3)若
的面积是
面积的两倍,求直线
的函数表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e434a6fc177990ab7f2b604c111e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/53f16d80-4b40-403a-b63e-fb0528dd6fc5.png?resizew=162)
(1)求点C的坐标.
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af3d733e964a4cd8cc2833cecdbe040.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173bc7a36757d77f01213411edd25241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bc4b926b29e58400df99ebf5771404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】已知正方形
中,
为对角线
、
的交点,
在直线
上一动点,连接
,作
交直线
于点
.
(1)如图
,当
与
重合时,
与
重合,则
与
的数量关系可以表示为:
.
(2)如图
,当
在线段
上且不与
、
重合时.
①求证:
;
②
、
、
有怎样的数量关系,请直接写出你的猜想,不需证明.
(3)当
在线段
的延长线上时,请在
画出图形,并猜想
、
、
有怎样的数量关系,加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2eaf2acb7e954cc0c4aacdc1f29f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/21/918f04b4-3d20-4915-9be6-9edbc398ce72.png?resizew=509)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4dd5d34fe36d4a2663d775d82726950.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac466688981c8b12dc4a45565383ecee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐2】如图1,△ABC、△BDE都是等腰直角三角形,点E在AB上,点D在CB的延长线上,BA=BC,BD=BE,AC=4,DE=2
,连接AD、CE
①请直接写出线段AD与线段CE数量关系是 ,位置关系是
②如图2将△BDE绕点B逆时针方向旋转,在旋转过程中,猜想线段AD与线段CE的关系是什么?并说明你的理由.
③将△BDE绕点B逆时针方向旋转一周,在旋转过程中当点E恰好落在直线AD上时,CE=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
①请直接写出线段AD与线段CE数量关系是 ,位置关系是
②如图2将△BDE绕点B逆时针方向旋转,在旋转过程中,猜想线段AD与线段CE的关系是什么?并说明你的理由.
③将△BDE绕点B逆时针方向旋转一周,在旋转过程中当点E恰好落在直线AD上时,CE=
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/5bfc11c7-36ab-48d1-92cd-cbeea8d381d1.png?resizew=535)
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解答题-作图题
|
适中
(0.65)
【推荐1】如图,AB是⊙O的直径,点P是AB上一点,且点P是弦CD的中点.
(1)依题意画出弦CD,并说明画图的依据;(不写画法,保留画图痕迹)
(2)若AP=2,CD=8,求⊙O的半径.
(1)依题意画出弦CD,并说明画图的依据;(不写画法,保留画图痕迹)
(2)若AP=2,CD=8,求⊙O的半径.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/18/d7f7bb1f-81cc-4e42-805d-f46efe194071.png?resizew=119)
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解答题-问答题
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适中
(0.65)
【推荐2】如图,已知
是
的弦,点
是线段
上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/b9df80b3-208a-4caa-9859-e7f04227831b.png?resizew=118)
(1)求
的半径;
(2)
是
上一动点,问
在何处时,以
为顶点的三角形面积最大?并求最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f259288a307f6d68babc2223c48064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/b9df80b3-208a-4caa-9859-e7f04227831b.png?resizew=118)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e615a05c85cb43fb4687190ec0171409.png)
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解答题-证明题
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适中
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名校
【推荐1】如图,直线
交
于
两点,
是直径,
平分
交
于
,过
作
于
.
(1)求证:
是
的切线;
(2)若
,求
的半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bab53e0cb6e6ec13764e326b98f26b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/637d4c2a9cedf650ac75ee7ec6f8033c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/0735680f-9107-4c23-8be8-cf342309bd47.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0ac78fcfa3db0f518c8b45125683cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在方格纸中有
及其外接圆,点A,B,C都在格点上.用无刻度的直尺作图.(保留作图痕迹)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/19fa2d75-669b-42ab-a98a-44ed821e5dac.png?resizew=168)
(1)找出圆心O.
(2)过点B作圆的切线
.
(3)作出
的角平分线
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/19fa2d75-669b-42ab-a98a-44ed821e5dac.png?resizew=168)
(1)找出圆心O.
(2)过点B作圆的切线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(3)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302efd5266f7868d8c67f7bb09dc2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次