1 . 《九章算术》中对一些特殊的几何体有特殊的称谓,例如,将底面为直角三角形的直三棱柱叫堑堵,将一个堑堵沿其一顶点与相对的棱刨开,得到一个阳马(底面是长方形,且有一条侧棱与底面垂直的四棱锥,即四棱锥
)和一个鳖臑(四个面均为直角三角形的四面体,即三棱锥
).在如图所示的堑堵
中,已知
,若鳖臑
的体积等于12,求:
的侧棱长;
(2)求阳马
的体积;
(3)求阳马
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895ac202e3507cb633337b41299ad84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861d61d2b7b16e12fd97f870fb3fa522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd01f8d99637871de828cb6b87ec7b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861d61d2b7b16e12fd97f870fb3fa522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
(2)求阳马
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895ac202e3507cb633337b41299ad84b.png)
(3)求阳马
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895ac202e3507cb633337b41299ad84b.png)
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解题方法
2 . 我国古代数学名著《九章算术》中,称四面都为直角三角形的三棱锥为“鳖臑”.如图,在三棱锥
中,
平面
.
为鳖臑;
(2)若
为
上一点,点
分别为
的中点.平面
与平面
的交线为
.
①证明:直线
平面
;
②判断
与
的位置关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a9ddd4df1b46d1802259bc6fab90f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6948549de4c4bed12f199231b9c69c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b938297d03de0a52f3e6a03b67446169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4984ee07d47dbcc4705137cd6d931d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
①证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72221ee5b504d596ff799c0b356aa0ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
②判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-04-29更新
|
1548次组卷
|
6卷引用:江苏省无锡市第一中学2023-2024学年高一下学期4月期中考试数学试题
解题方法
3 . 数学家欧拉1765年在其所著的《三角形几何学》一书中提出:任意三角形的外心、垂心、重心在同一条直线上,后人称这条直线为欧拉线.已知
的顶点
,若其欧拉线的方程为
,
(1)求三角形
外心
的坐标;
(2)求顶点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf48af141bdecb80ed7abba920b392f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23fc11a3a7592c68b20f93bdde2ed3f.png)
(1)求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)求顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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4 . 上海中心大厦是上海市的地标建筑,现为中国第一高楼.为有效减少建筑所受的风荷载,通常对建筑体型进行一定的扭转.上海中心大厦的主楼可近似看成将正三棱柱的一个底面扭转所得的几何体;将正三棱柱
的底面
在其所在平面内绕
的中心逆时针旋转
得到
,再分别连接
、
、
、
、
、
所得的几何体.已知大厦的主楼高度约为
米,底层面积(即
的面积)约为
平方米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/fdf3aa87-7bc9-4fc4-a1b2-d692595b7966.png?resizew=149)
(1)求证:
;
(2)试分别以正三棱柱
和几何体
为模型估算大厦主楼的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f986a0d8f37177dcccfee3898a66fd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c431cd12f858f0bc8dabb1d8c0b8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020ebe1219437129358b986eb9e70bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300d29bf2277a510ab443c1e2a55e1bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4336253885d52e43ba6eaa297ea847b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3157362e4455a2176539f8bdcfcea93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2faca11afa8ddaa19cde2e91ee5983f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/d2649820-fc38-45b9-ba26-9032c8bf3c25.jpg?resizew=128)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/fdf3aa87-7bc9-4fc4-a1b2-d692595b7966.png?resizew=149)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154c43b58f7f6389d6d71aa520b6c34f.png)
(2)试分别以正三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
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5 . 公元前3世纪,古希腊数学家阿波罗尼斯(Apollonius)在《平面轨迹》一书中,研究了众多的平面轨迹问题,其中有如下著名结果:平面内到两个定点
距离之比为
(
且
)的点
的轨迹为圆,此圆称为阿波罗尼斯圆.
(1)已知两定点
,
,若动点
满足
,求点
的轨迹方程;
(2)已知
,
是圆
上任意一点,在平面上是否存在点
,使得
恒成立?若存在,求出点
坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472393b18c7880e73b40e31fbe2d951c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)已知两定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df5d30e4268a4b86a4e098e8cb57da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0d82cb174d173b7e36937c3f99f591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d693e0488f9f648a2ee79c5d61a25288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df5d30e4268a4b86a4e098e8cb57da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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6 . 已知
的顶点
,
,且重心G的坐标为
.
(1)求C点坐标:
(2)数学家欧拉在1765年提出定理:三角形的外心、重心、垂心依次位于同一直线上,这条直线被后人称之为三角形的欧拉线.求
的欧拉线的一般式方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429efe96d68065e7d433c996682791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf98aba96e37498ea1401b12ad5be2cf.png)
(1)求C点坐标:
(2)数学家欧拉在1765年提出定理:三角形的外心、重心、垂心依次位于同一直线上,这条直线被后人称之为三角形的欧拉线.求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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7 . 瑞士著名数学家欧拉在1765年提出定理:三角形的外心、重心、垂心位于同一直线上,这条直线被后人称为三角形的“欧拉线”.在平面直角坐标系中,
满足
,顶点
、
,且其“欧拉线”与圆
相切.
(1)求
的“欧拉线”方程;
(2)若圆M与圆
有公共点,求a的范围;
(3)若点
在
的“欧拉线”上,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a290a27cce9bd59bb6d79822473d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cefbbb0d842bad4610c76aba1e7750c7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若圆M与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdeab40127051a611f7df0a17962615a.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42e5ae72a42668f16954a7912789d6d.png)
您最近一年使用:0次
2023-11-16更新
|
416次组卷
|
4卷引用:河北省保定市六校2023-2024学年高二上学期期中联考数学试题
名校
解题方法
8 . 已知
的顶点
,
,
.
(1)若直线
过顶点
,且顶点A,
到直线
的距离相等,求直线
的方程;
(2)数学家欧拉于1765年在他的著作《三角形的几何学》中首次提出:三角形的外心、重心、垂心共线,这条直线称为欧拉线.求
的欧拉线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8c39de4d7d1277da346b51b5bd2499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428426e7f2ee0502b555a87a5cef6cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134fc3507b06c25a6cdf06b7ae11f055.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)数学家欧拉于1765年在他的著作《三角形的几何学》中首次提出:三角形的外心、重心、垂心共线,这条直线称为欧拉线.求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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9 . 我国古代数学名著《九章算术》,将底面为矩形且有一条侧棱垂直于底面的四棱锥称为“阳马”.如图所示,在长方体
中,已知
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/064926f8-580d-47cb-ba38-0fa73946e3aa.png?resizew=134)
(1)求证:四棱锥
是一个“阳马”,并求该“阳马”的体积;
(2)求该“阳马”
的外接球的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/064926f8-580d-47cb-ba38-0fa73946e3aa.png?resizew=134)
(1)求证:四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec35c2182c5e0c80b766adceb058e5f.png)
(2)求该“阳马”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec35c2182c5e0c80b766adceb058e5f.png)
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解题方法
10 . 古希腊数学家阿波罗尼奥斯(约公元前262~公元前190年)的著作《圆锥曲线论》是古代世界光辉的科学成果,著作中有这样一个命题:平面内与两定点距离的比为常数
(
且
)的点的轨迹是圆,后人将这个圆称为阿波罗尼斯圆.已知平面直角系
中的点
,则满足
的动点
的轨迹记为圆
.
(1)求圆
的方程;
(2)过点
向圆
作切线
,切点分别是
,求直线
的方程.
(3)若点
,当
在
上运动时,求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b0066f6727f17005cdd961ca870b636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912ce9e2bc6d66b10992356ce7571f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa28513933252485ebc1ae7559393f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f8507bcdee726272d047f991acc050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe7fd9b0c3c203a053a7ea52b71e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2e9b22d99935abbd6f734524c25c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b4c898d4e609cc1d53716eaee8bb48.png)
您最近一年使用:0次
2023-09-27更新
|
483次组卷
|
2卷引用:河北省保定部分高中2023-2024学年高二上学期9月月考数学试题