名校
1 . 如图所示,已知直线
的方程为
,⊙
,⊙
是相外切的等圆.且分别与坐标轴及线段
相切,
,则两圆半径![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
__________ (用常数
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f6e613ffa032e7e893daa1970d3948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b2bc7331e651f466890b46111b962e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/4c1689d5-6d77-40e0-b08d-9da2426bc4fc.png?resizew=171)
您最近一年使用:0次
2018-05-25更新
|
184次组卷
|
2卷引用:【全国百强校】安徽省合肥市第一中学2018冲刺高考最后1卷理科数学试卷
名校
2 . (陕西高考)如图,△ABC中,BC=6,以BC为直径的半圆分别交AB,AC于点E,F,若AC=2AE,则EF=________ .
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758848850362368/1816566449332224/STEM/9a1fb7716a0344a48c78a8c9b1b8b76a.png?resizew=94)
您最近一年使用:0次
2017-11-13更新
|
128次组卷
|
2卷引用:2017-2018学年人教版高中数学选修4-1:模块综合检测(一)
名校
3 . 如图,设
和
都是等边三角形,且
,则
的度数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b17ce6e90cd3810a3696262e94c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e016fac9484f4f6652da209c9b85d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a55a1a244f81097e05e715b69580faa.png)
![](https://img.xkw.com/dksih/QBM/2017/8/29/1762653204406272/1765471269150720/STEM/3e1a75369a1845f480297f5f73fc72d2.png?resizew=208)
您最近一年使用:0次
4 . (几何证明选讲选做题)如图,
是圆
的直径,直线
与圆
相切于点
,
于点
,若圆
的面积为
,
,则
的长为______ .
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/3a029f3a35d549c4ac8eb70bfc72f95b.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/e36558b8ae0e441bb835141262b5362c.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/f1c51e95c32b44c2ae357f141900474a.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/e36558b8ae0e441bb835141262b5362c.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/52a438afc96c475bb8a344593cf07855.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccd5c41c921836b50f8e18abfdc5df3.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/78a75e0b6f9a4180a8185aa6b1467705.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/e36558b8ae0e441bb835141262b5362c.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9609625b502348556ff8ba32deac8caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58899f5c3638f1e32274137723f99836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1578625184169984/1578625184571392/STEM/c534ae515c6b404cbd6a2af8d132c613.png?resizew=135)
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5 . (选修4—1:几何证明选讲)
如图,已知切线
切圆于点
,割线
分别交圆于点
,点
在线段
上,且
,
,
,
,则线段
的长为________ .
如图,已知切线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59802bde1dc59ba9000157b08463b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42f5b34fe7c05319216eca3541ec4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3077b532022113b4d85d47d730de23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b336e518ac4ff04c6c26e4b8a15844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2015/10/8/1572244196278272/1572244202061824/STEM/21a2924585af4c67b8b1e3cd0b05b3a5.png?resizew=144)
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6 . (选修4-1:几何证明选讲)如图,
是⊙
的直径,
是⊙
上的两点,
⊥
,过点
作⊙
的切线FD交
的延长线于点
.连结
交
于点
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404728d0ea2699c71e674f30dd984abd.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/ea9aa3f533894ca87a394f7a1dfd0ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d131688ea412debccba8b3860ccf60dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404728d0ea2699c71e674f30dd984abd.png)
![](https://img.xkw.com/dksih/QBM/2015/6/10/1572120852537344/1572120858542080/STEM/75c9f6f4d4294f87a380c7ee6f50c622.png?resizew=265)
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7 . 如右图,PT切圆O于点T,PA交圆O于A、B两点,且与直径CT交于点D,CD=2,AD=3,BD=6,则PB=______ .
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090943643648/1572090949533696/STEM/7f89475475d44281be72cb64192bfa96.png?resizew=174)
您最近一年使用:0次
8 . 如下图,PA,PB为⊙
的两条切线,切点分别为
,过
的中点
作割线交⊙
于
两点,若
则![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/ddc0437d26e647afbcc1b72929feb9cc.png?resizew=37)
__________ .
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/0a9c54a3bb0049cb9f6019f11b38b86e.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/58a599b8d6494861a0e60a2e55e111a1.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/a77beeec68854c1ea5d1ad80868136f5.png?resizew=25)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/90910196dd5e400c83c19a7ee9bf0f0d.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/0a9c54a3bb0049cb9f6019f11b38b86e.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/8bcf1e2ad41f457784645bde304d0557.png?resizew=34)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/acf29ff9624941479789bb997b0b45f3.png?resizew=104)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/ddc0437d26e647afbcc1b72929feb9cc.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572090378838016/1572090384670720/STEM/d799d967aa8f459abfa0a95f81d4a97c.png?resizew=222)
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