如图,
是
的直径,弦
交AB于点E,连接
.若
,
(1)求
的度数;
(2)若
,求
的度数.
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bde5efa645a4c1ed6874088400d6a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219f604632bd927bce98fd7ed35f040b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/7/48fdbff4-e128-411c-9fee-20952e5585a2.jpg?resizew=130)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d238a7518251f91f4f5eb7cb1a3bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936f5f26aac7197d42a41081fb1fda0e.png)
22-23九年级上·江苏盐城·期中 查看更多[5]
江苏省盐城市大丰区2022-2023学年九年级上学期期中数学试题(已下线)专题03 圆的有关性质(经典基础题6种题型+优选提升题)-【好题汇编】备战2023-2024学年九年级数学上学期期中真题分类汇编(苏科版)江苏省宿迁市沭阳县怀文中学2023-2024学年九年级上学期10月月考数学试题江苏省宿迁市沭阳县2023-2024学年九年级上学期10月月考数学试题江苏省南京市2023-2024学年九年级上学期期末数学试题
更新时间:2023-09-28 07:48:53
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐2】如图,
中,
,
垂直平分
,交
于点F,交
于点E,且
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/79dfd7ef-edf1-49ad-a628-116e7181f3ac.png?resizew=176)
(1)若
,求
的度数;
(2)若
,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e792b0ef3d542237ed0903194597651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/79dfd7ef-edf1-49ad-a628-116e7181f3ac.png?resizew=176)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fb900d14718e4a47eb9d8a17b0dd8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb9e5e6a64d18753af1bf071f39d906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐1】如图,在
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/18/0afaa2d5-d554-4a92-b27a-34afb7566926.png?resizew=222)
(1)尺规作图:作
的垂直平分线交
于点
,交
于点
,连接
.(保留作图痕迹,不写作法,不写出结论)
(2)在(1)的条件下,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/18/0afaa2d5-d554-4a92-b27a-34afb7566926.png?resizew=222)
(1)尺规作图:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19a24762d0c926dec6f464a31df6648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,在
中点
是
上一点,点
是
上一点,
与
相交于点
,
,
,求
和
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c37bc340652bed4ef476ad9778b997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d93b44e9618583158cca2d8093619e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d863098bed1e9f95e830f2b2e18d40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17aa8893777dab44c92250c5e101555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b289af2216c9cb20180c7527f1ea697.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/256305aa-9531-4a90-bfe5-ce3b9c1bcb39.png?resizew=137)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐1】如图,
为
的直径,C为
上一点,直线
是
的切线,
于点D,
交
于点F,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/1eab5dc4-198c-4f41-bc84-3a8acb02f629.png?resizew=198)
(1)求证:
平分
.
(2)若
,求
.
![](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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccd5c41c921836b50f8e18abfdc5df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/1eab5dc4-198c-4f41-bc84-3a8acb02f629.png?resizew=198)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4189a0821a0ffab9dc171ecd279ba442.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d14ac4b6a67a40322d55787e28537c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,
是劣弧
的中点,过点
分别作
,
,
、
分别是垂足,试判断
、
的大小,并说明理由.
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affbe2d2ced2303d8c3d183746d0bcf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84a7cd47edd57011a3816f7180995b6.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/573d6e0a-b388-453a-bcbd-0cbc6d11c37c.png?resizew=137)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐1】如图1,已知
是
的直径,
是
的弦,过O点作
交
于点D,交
于点E,交
的延长线于点F,点G是
的中点,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/1d34432c-d0aa-4c6d-952f-c348ad922af1.png?resizew=236)
(1)判断
与
的位置关系,并说明理由;
(2)求证:
;
(3)如图2,当
,
,
时,求
的长.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebef5bab02280cdc99cc7f689135cd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/1d34432c-d0aa-4c6d-952f-c348ad922af1.png?resizew=236)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb11667abcb2759f301391b9850352be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b0b7f4ab5c6cf3b8179fabbd66d5bf.png)
(3)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126b4efa256449a87c3ab16e2dc4ec73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb672cd9b920179de185fb959f76ff6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284b53561518680e01abafd1889eda11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,已知AB是⊙O的直径,C是⊙O上的一点,CD⊥AB于D,AD<BD,若CD=2cm,AB=5cm,求AD、AC的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/25a48979-51ec-434b-ac5c-160b269a47d9.png?resizew=151)
您最近一年使用:0次