如图1,已知点M在x轴上,
与x轴交于A、D两点,与y轴正半轴交于B点,C是
上一点,且
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/fd2309b1-73ca-4a22-9d3c-885a19776fab.png?resizew=387)
(1)求圆心M的坐标;
(2)求四边形
的面积;
(3)如图2,过点C作弦
交
于点E,当
时,请直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774480361088aa3198c7bc3148fa23fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429efe96d68065e7d433c996682791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/fd2309b1-73ca-4a22-9d3c-885a19776fab.png?resizew=387)
(1)求圆心M的坐标;
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)如图2,过点C作弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226c231c1150e27c34eb787a46b02ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
22-23九年级上·江苏无锡·期末 查看更多[3]
江苏省无锡市梁溪区2022-2023学年九年级上学期期末数学试题江苏省扬州市江都区邵樊片2023-2024学年九年级上学期期中数学试题(已下线)专题14解答压轴题1(精选80道) -【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(苏科版)
更新时间:2023-02-28 10:50:36
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相似题推荐
解答题-问答题
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解题方法
【推荐1】将直角三角板ABC按如图1放置,直角顶点C与坐标原点重合,直角边AC、BC分别与x轴和y轴重合,其中∠ABC=30°.将此三角板沿y轴向下平移,当点B平移到原点O时运动停止.设平移的距离为m,平移过程中三角板落在第一象限部分的面积为s,s关于m的函数图象(如图2所示)与m轴相交于点P(
,0),与s轴相交于点Q.
![](https://img.xkw.com/dksih/QBM/2020/3/31/2431159844741120/2432301059653632/STEM/ff762eed995f49e1bd10b0bcd6e1fe2c.png?resizew=263)
(1)试确定三角板ABC的面积;
(2)求平移前AB边所在直线的解析式;
(3)求s关于m的函数关系式,并写出Q点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2020/3/31/2431159844741120/2432301059653632/STEM/ff762eed995f49e1bd10b0bcd6e1fe2c.png?resizew=263)
(1)试确定三角板ABC的面积;
(2)求平移前AB边所在直线的解析式;
(3)求s关于m的函数关系式,并写出Q点的坐标.
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名校
【推荐2】如图,在平行四边形
中,过点A作
,垂足为E,连接
,F为
上一点,且
.
![](https://img.xkw.com/dksih/QBM/2022/12/3/3122875841896448/3127153357168640/STEM/8c196464971b4569bea9888dec43438a.png?resizew=199)
(1)求证:
;
(2)若
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c05986ad5fa244bc1aedf7b5d216544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f730cd8d1e31fbdc76560c7beb85aa6.png)
![](https://img.xkw.com/dksih/QBM/2022/12/3/3122875841896448/3127153357168640/STEM/8c196464971b4569bea9888dec43438a.png?resizew=199)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4ef66489d2624ead6e1237c138f7e2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a54ed2bdf16de096da404df0b4f740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
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【推荐1】已知
,
为边
上一点,以点
为圆心,
为半径作
,交
于
,
两点.设
.
(1)如图
,当
取何值时,
与
相切?请说明理由;
(2)如图
,当
与
交于
,
两点,
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e88c47e28e6d4c017411c87100ac0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.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/2633a6f46b0847158eebb05c743561aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/67b32af4-a593-477d-bc31-4abbddedac52.png?resizew=373)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886c25cbaff27a9c4cf52dacec0eac4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐2】如图,
内接于
,
是
的直径,
,垂足为D.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/405fac2f-f3ae-4c46-91e0-75c46de43c14.png?resizew=128)
(1)求证:
;
(2)已知
的半径为5,
,求
长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/405fac2f-f3ae-4c46-91e0-75c46de43c14.png?resizew=128)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845defe182d1ef5a31fa46fd3137af7a.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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【推荐1】如图,已知
,
为
的直径,过点A作弦
垂直于直径
于点F,点B恰好为
的中点,连接
.
;
(2)若
,求
的半径.
![](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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c44512cb86bcf48c6d21357f45b533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2f8f884f10c5130ec0a60280f0ef3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2291de85a2a29ff360a4515cce99c804.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941eba4dbc1094107e1eeb02c8d8cd56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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【推荐2】如图,AB是⊙O的直径,CD是⊙O的弦,且CD⊥AB于点E.
(1)求证:∠ADO=∠C;
(2)若⊙O的半径为5,BE=2,求CD的长.
(1)求证:∠ADO=∠C;
(2)若⊙O的半径为5,BE=2,求CD的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/c7835571-0ba4-4059-8016-80cb761b7403.png?resizew=181)
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