已知:如图,
为
的弦,
为
延长线上的一点,
切
于
,
为
的直径,
交
于
,
,
,
,则
( )
![](https://img.xkw.com/dksih/QBM/2018/11/27/2084770011111424/2136805284634624/STEM/76e0895504644f2d9ad9248791408f4a.png?resizew=122)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf6101c529b7868bc1c2fd46aca16bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edbe289ad89a4243903108709ce0381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60051144e33707f6aa51b2fe09925268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf6101c529b7868bc1c2fd46aca16bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcd98ee0037900264471b4baa7e46e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edbe289ad89a4243903108709ce0381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc2730277cbe81789d071e235bc9315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edbe289ad89a4243903108709ce0381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc2730277cbe81789d071e235bc9315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf6101c529b7868bc1c2fd46aca16bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/410e1815f8ade429c4e9974937d04278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91034d449cc447d80d6cddb0bbe2b2bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5875482c25411dcabe17a60b96654129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fee2c235e103f974c9384cb71c683d.png)
![](https://img.xkw.com/dksih/QBM/2018/11/27/2084770011111424/2136805284634624/STEM/76e0895504644f2d9ad9248791408f4a.png?resizew=122)
A.9 | B.12 | C.15 | D.6 |
更新时间:2019-02-09 17:08:37
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,在
中,直径
,弦
,交
于点C,连接
.若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4630b9ca3d20635161fa8fbf812b9128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d37160545bf07e848d23fca6a7b1da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.5 | B.4 | C.8 | D.6 |
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【推荐2】如图,AB是⊙O的弦,AB=8,直径CD⊥AB于M,且DM=8,则⊙O的半径为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/481e7e20-d4f9-4c82-8d8b-523c49ece460.png?resizew=100)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/481e7e20-d4f9-4c82-8d8b-523c49ece460.png?resizew=100)
A.3 | B.4 | C.5 | D.6 |
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名校
【推荐1】如图,以正方形
的
边为直径作半圆
过点
作直线切半圆于点
,交
边于点
,若
的周长为12,则线段
的长为( )
![](https://img.xkw.com/dksih/QBM/2022/11/9/3105662794596352/3107533599424512/STEM/0510e32759d6439b8effb9ba2e08086e.png?resizew=134)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/2022/11/9/3105662794596352/3107533599424512/STEM/0510e32759d6439b8effb9ba2e08086e.png?resizew=134)
A.1 | B.2 | C.![]() | D.![]() |
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【推荐2】如图1,
为
的直径,点
在线段
的延长线上,
,动点
在
上方的
上运动(含
两点),连接
,设
.有以下结论:
结论Ⅰ:当线段
与
只有一个公共点
时,
的范围是
;
结论Ⅱ:当线段
与
有两个公共点
时,如图2,若
,则
.
下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f5e8943694cd06cffde04d81f4dced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ad58997b9dc0b341c9af08f0cd1fbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec6ce73c6786d50028addff089bbb64.png)
结论Ⅰ:当线段
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2206e2d017b15fdea0580b241c87fbe.png)
结论Ⅱ:当线段
![](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/943049ea4622f0ac4844b7c35b9a6434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df41a369a8b0420bb30649f79a43ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e8c7b3bffa3a56177b601657215dc7.png)
下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/782246fc-7a83-49a1-bef5-e7838287298a.png?resizew=386)
A.Ⅰ和Ⅱ都正确 | B.Ⅰ和Ⅱ都错误 | C.Ⅰ错误Ⅱ正确 | D.Ⅰ正确Ⅱ错误 |
您最近一年使用:0次
单选题
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【推荐1】如图,
为
的边
延长线上的一点,且
,
的面积为4,则
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/4454d7c8-6dd7-4b56-9831-987e8a92e859.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d968523137b390183c725185c52ebd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/4454d7c8-6dd7-4b56-9831-987e8a92e859.png?resizew=165)
A.34 | B.27 | C.30 | D.32 |
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【推荐2】如图,在平面直角坐标系
中,四边形
的边
与y轴的正半轴重合,
,
轴,对角线
与
交于E点.已知
,
的面积为2.若反比例函数
的图象恰好经过点E,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7110a27677d14db9991cbc80f9fb4edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaa4f63f17c1748c7035c761a9d7cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019fd636c650dc38da30354c1087b1a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f87f4938633ec8ab5fe4639d4cccc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c771a4feb150ad9cff8d70431c97eb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
A.![]() | B.![]() | C.8 | D.16 |
您最近一年使用:0次