如图,在
中,
,O是BC边上一点,以O为圆心,
为半径的圆与
相交于点D,连接
,且
.
是
的切线;
(2)若
,求半径的长.
![](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/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffc2a946e72f26a8af584d8ead3a396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17916bdf641e0c5c7f189d0f1b7c5347.png)
21-22九年级上·新疆·期末 查看更多[18]
新疆维吾尔自治区新疆农业大学附属中学2021-2022学年九年级上学期期末数学试题福建省龙岩市新罗区龙岩初级中学教育组团2022-2023学年九年级上学期期中考试 数学试题广东省河源市新河实验学校2022-2023学年九年级上学期综合能力练习数学试题2023年山东省菏泽市东明县中考一模数学试题(已下线)专题12 切线的证明与计算-学易金卷:2023年中考数学一模试题分项汇编(山东专用)新疆维吾尔自治区新疆生产建设兵团第五师中学2022-2023学年九年级上学期期末数学试题湖南省湘西州古丈县2022-2023学年九年级上学期期末数学试题福建省福州市第十八中学2023-2024学年九年级上学期期中学试题福建省龙岩市新罗区龙岩市第七中学2023-2024学年九年级上学期期中数学试题新疆维吾尔自治区昌吉回族自治州奇台县第四中学2023-2024学年九年级上学期期末数学试题河南省新乡市长垣市2023-2024学年九年级上学期期末数学试题陕西省西安市鄠邑区2022-2023学年九年级上学期期末数学试题陕西省安康市石泉县2023-2024学年度九年级上学期期末数学试题 新疆维吾尔自治区克拉玛依市白碱滩区2023-2024学年上学期九年级数学期末试题(已下线)专题13确定圆的条件、直线和圆的位置关系 (5个知识点8种题型)-【帮课堂】2023-2024学年九年级数学下册同步学与练(北师大版)2024年广西壮族自治区防城港市中考一模数学模拟试题2024年广西玉林市九年级中考一模数学试题2024年广西部分市县区九年级中考一模数学试题
更新时间:2024-02-08 08:49:54
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解答题-证明题
|
适中
(0.65)
【推荐1】如图,在
中,
,
于点
,点
是
边上一点,连接
交
于
,
交
边于点
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d2eae98e1683fbb9533584450dd696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f05f86f9c02467d4a1fe8c778c997ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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解答题-证明题
|
适中
(0.65)
真题
【推荐1】在
中,
,
,垂足为M,点C是
延长线上一点,连接
.
(1)如图①,若
,
,求
的长;
(2)如图②,点D是线段
上一点,
,点E是
外一点,
,连接
并延长交
于点F,且点F是线段
的中点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa2a58d8943804313b02adc29e2afc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7af3d5765382269f380d39b0ffc9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/096ea3aa-7075-4f47-a0de-70f04d2acd8e.png?resizew=428)
(1)如图①,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6834ac70927ae08d7d36a1922403c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)如图②,点D是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b873f6e5d876b52486f91805323553e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f166307ca3b86dbd71aed464c497c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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解答题-证明题
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适中
(0.65)
【推荐1】如图,P是正方形ABCD的边BC上的一个动点(P与B、C不重合)连接AP,过点B作
交CD于E,将
沿BE所在直线翻折得到
,延长
交BA的延长长线于点F.
(1)探究AP与BE的数量关系,并证明你的结论;
(2)当AB=3,BP=2PC时,求EF的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f75139b83eee3bb961eea53d167098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1a2dbe2665ec6a0fadff8e19da12f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f640a822f3410f75cda7b8ea4ee05376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7752aa0b8a01afc2fa4e44212cc9333b.png)
(1)探究AP与BE的数量关系,并证明你的结论;
(2)当AB=3,BP=2PC时,求EF的长.
![](https://img.xkw.com/dksih/QBM/2020/10/6/2565374538735616/2566583736221696/STEM/e2e2e869837d46eeb9e8956189ad6523.png?resizew=212)
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解答题-证明题
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适中
(0.65)
【推荐2】如图,M为线段
的中点,
与
交于点C,
,且
交
于F,
交
于G.
![](https://img.xkw.com/dksih/QBM/2016/11/3/1574251950661632/1574251957166080/STEM/f4d46c7cd31a449891aaab25b86c2d66.png?resizew=118)
(1)求证:
;
(2)连结
,如果
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4e63a12f074a64e9c3499b86ddc25c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2016/11/3/1574251950661632/1574251957166080/STEM/f4d46c7cd31a449891aaab25b86c2d66.png?resizew=118)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6f722fbf74b5dd988b954aac1abd54.png)
(2)连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c69a23d106fd34aa17b22e9c9a8de36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedd51383f8f047f565191b128cec637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae341f580ff8fbf21f616fe900b0e4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
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解答题-作图题
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适中
(0.65)
名校
【推荐1】如图,过点A的直线DE和正三角形ABC的边BC平行.
![](https://img.xkw.com/dksih/QBM/2019/11/22/2339221862080512/2340682875142144/STEM/408764c7fd7e47fc872112cead554210.png?resizew=151)
(1)利用直尺和圆规作△ABC的外接圆O(不写作法,保留作图痕迹);
(2)求证:DE是⊙O的切线.
![](https://img.xkw.com/dksih/QBM/2019/11/22/2339221862080512/2340682875142144/STEM/408764c7fd7e47fc872112cead554210.png?resizew=151)
(1)利用直尺和圆规作△ABC的外接圆O(不写作法,保留作图痕迹);
(2)求证:DE是⊙O的切线.
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解答题-问答题
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适中
(0.65)
【推荐2】已知△ABC内接于⊙O, AC是⊙O的直径,D是弧AB的中点.过点D作CB的垂线,分别交CB、CA延长线于点F、E .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/b4c21c06-d706-49c5-815f-03a8bd0f7438.png?resizew=221)
(1)判断直线EF与⊙O的位置关系,并说明理由;
(2)若CF=6,∠ACB=60°,求阴影部分的面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/b4c21c06-d706-49c5-815f-03a8bd0f7438.png?resizew=221)
(1)判断直线EF与⊙O的位置关系,并说明理由;
(2)若CF=6,∠ACB=60°,求阴影部分的面积.
您最近一年使用:0次