1 . 如图所示,在三棱柱
中,若
,
分别为
,
的中点,平面
将三棱柱分成体积为
(棱台
的体积),
(几何体
的体积)的两部分,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e68300e9ff6b6ea7943bdd2b3658b2c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e68300e9ff6b6ea7943bdd2b3658b2c.png)
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2021-08-11更新
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4卷引用:广东省广州中学2019-2020学年高一下学期期中数学试题
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解题方法
2 . 如图,在直三棱柱
中,点D为棱
的中点.已知AB=BC=AA1=1,AC=
,以D为球心,以
为半径的球面与侧面
的交线长度为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://img.xkw.com/dksih/QBM/2021/1/18/2638925325475840/2640797015375872/STEM/19bedede566a4a73be56e29b2e9843e9.png?resizew=152)
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3 . 过原点的直线与圆
相交于A,B两点,则弦AB的中点M的轨迹方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ecf7240772bb21d8ed901c3077e35d.png)
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4 . 已知
和
点关于直线
对称,则
点坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4617c61168e1cf0a6545a57b3de6f235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512f4c29ff276b7f35052ad4cc255ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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2卷引用:重庆市云阳江口中学校2020-2021学年高二上学期第三次月考数学试题
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5 . 设直三棱柱
的所有顶点都在同一个球面上,且球的表面积是
,
,
,则此直三棱柱的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c8cfd6f5b2f47e34cb94169d154eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd8f940b796af67206b3f9dd410a407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
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6 . 若P,Q分别为直线
与
上任意一点,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895fa47a776962dd68b3ff39812cad9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6099447b39bf4013e66b43c694cd03b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
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7 . 我国古代数学家祖暅求几何体的体积时,提出一个原理:幂势即同,则积不容异.意思是:夹在两个平行平面之间的两个等高的几何体被平行于这两个面的平面去截,若截面积相等,则两个几何体的体积相等,这个定理的推广是:夹在两个平行平面间的几何体,被平行于这两个平面的平面所截,若截得两个截面面积比为
,则两个几何体的体积比也为
.已知线段
长为4,直线
过点
且与
垂直,以
为圆心,以1为半径的圆绕
旋转一周,得到环体
;以
,
分别为上下底面的圆心,以1为上下底面半径的圆柱体
;过
且与
垂直的平面为
,平面
,且距离为
,若平面
截圆柱体
所得截面面积为
,平面
截环体
所得截面面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
________ ,环体
体积为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2020/12/11/2611884208005120/2613910298845184/STEM/ba973caee5f54677a6d74971abdee361.png?resizew=554)
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2020-12-14更新
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569次组卷
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8卷引用:安徽省池州市东至县2020-2021学年高三上学期12月大联考数学(文)试题
安徽省池州市东至县2020-2021学年高三上学期12月大联考数学(文)试题安徽省池州市东至县2020-2021学年高三上学期12月大联考数学(理)试题安徽省全省名校实验班2020-2021学年高三上学期大联考文科数学试题(已下线)专题16 空间几何体(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题15 空间几何体(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题15 空间几何体(客观题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)江苏省2021届高三高考数学全真模拟试题(一)(已下线)专题22 祖暅原理
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8 . 已知正方体
的棱长为
,点
为线段
上一点,
,则点
到平面
的距离为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc532cfe64300cb3da9e04a307c957a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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2020-12-05更新
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6卷引用:安徽省池州市第一中学2020-2021学年高二上学期12月月考数学(文)试题
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9 . 三条直线
,
,
不能围成三角形,则
的取值集合是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8a3365e99f926b1dafa901ab232152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf73c7f6f8e7ff4c06991b4d6dc0b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddd805e00779879614c1c02ee58e5cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-11-21更新
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524次组卷
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5卷引用:安徽省池州市东至县第三中学2020-2021学年高二上学期期中理科数学试题
安徽省池州市东至县第三中学2020-2021学年高二上学期期中理科数学试题(已下线)3.1.2 两条直线平行与垂直的判定-2020-2021学年高一数学课时同步练(人教A版必修2)(已下线)1.3 两条直线的平行与垂直(1)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)江西省宜春市上高二中2020-2021学年高一下学期第五次月考数学(理)试题(已下线)1.4 两条直线的交点(B 能力培优练)-2021-2022学年高二数学上学期同步双培优检测(苏教版2019选择性必修第一册)
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10 . 过点
且与⊙C:
相切的直线方程为_______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbcf0320d94734aedd3d4e2e31b9827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca378611161c733202a348aa3f2ee5ab.png)
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2020-11-21更新
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724次组卷
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3卷引用:安徽省池州市第一中学2020-2021学年高二上学期期中数学(理)试题