名校
解题方法
1 . 转子发动机采用三角转子旋转运动来控制压缩和排放.如图1,三角转子的外形是有三条侧棱的曲面棱柱,且侧棱垂直于底面,底面是以正三角形的三个顶点为圆心,正三角形的边长为半径画圆构成的曲面三角形(如图2),正三角形的顶点称为曲面三角形的顶点,侧棱长为曲面棱柱的高,记该曲面棱柱的底面积为S,高为h.已知曲面棱柱的体积V=Sh,如图1所示的曲面棱柱的体积为
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/30/400e4b95-1519-487e-8049-e557cbe6449b.png?resizew=208)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16012ec630928cdbc5cfae5d3c48ca91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e753dc81ed21f878fff89e98cccf24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/30/400e4b95-1519-487e-8049-e557cbe6449b.png?resizew=208)
A.2 | B.3 | C.4 | D.6 |
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2023-05-20更新
|
792次组卷
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4卷引用:甘肃省白银市靖远县2023届高三下学期第二次联考文科数学试题
甘肃省白银市靖远县2023届高三下学期第二次联考文科数学试题甘肃省白银市靖远县2023届高三下学期第二次联考理科数学试题安徽省定远中学2023届高三下学期高考冲刺卷(一)数学试卷(已下线)模块七 第3套 迎接高考之必做基础热身题( 三角与概率)
2 . 如图,
为圆锥的顶点,
为圆锥底面的圆心,
为底面直径,
为底面圆周上一点,
,四边形
为矩形,点
在
上,且
平面
.
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973651645530112/2974963590799360/STEM/68b66aa8-c580-412a-8ce6-923d1ec1ca0c.png?resizew=289)
(1)请判断点
的位置并说明理由;
(2)平面
将多面体
分成两部分,求体积较大部分几何体的体积.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfe71b1bd5d58b604e0f1ff775fb92a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d2806aad4bdfa727f3d4150434ab055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2b5cfae407016cad45bbdefea05833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973651645530112/2974963590799360/STEM/68b66aa8-c580-412a-8ce6-923d1ec1ca0c.png?resizew=289)
(1)请判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c761098c711ffc8ad047a6867d2a268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18145e24844c08cb2cc05f69cfbb1c5a.png)
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2022-05-08更新
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1091次组卷
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3卷引用:甘肃省武威第一中学2022届高三文科数学冲刺试题
3 . 玉琮是一种内圆外方的筒型玉器,它与玉璧、玉圭、玉璋、玉璜、玉琥被称为“六器”,是古人用于祭祀神祇的一种礼器.《周礼》中载有“以玉作六器,以礼天地四方,以苍璧礼天,以黄琮礼地”等文.如图为齐家文化玉琮,该玉琮中方内空,形状对称,圆筒内径
,外径
,筒高
,方高
,则其体积约为(单位:
)( )
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681335141285888/2681393204404224/STEM/9c886cf3-d197-4c7a-a173-eac74af8e824.png?resizew=142)
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681335141285888/2681393204404224/STEM/5031b006c9b94c77bf51b58af241cc43.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b8ca77ee087bf150d669ede85a069d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2692600cf1689462e68950d58eacd873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1866f8591d29d9049d022a2c19ea0969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efaebbeafc3e98e403937c12527e7820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc17f54e5045eb586f36b86467738a9.png)
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681335141285888/2681393204404224/STEM/9c886cf3-d197-4c7a-a173-eac74af8e824.png?resizew=142)
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681335141285888/2681393204404224/STEM/5031b006c9b94c77bf51b58af241cc43.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-03-19更新
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4卷引用:甘肃省2020-2021学年高三第一次高考诊断理科数学试卷
甘肃省2020-2021学年高三第一次高考诊断理科数学试卷甘肃省2021届高三第一次高考诊断文科数学试题(已下线)专题10 立体几何-备战2021年高考数学(文)经典小题考前必刷集合第 11 章 简单几何体 综合测试【2】
解题方法
4 . 某几何体的三视图如图所示,则该几何体的体积为( )
![](https://img.xkw.com/dksih/QBM/2021/1/18/2638689905377280/2639746563096576/STEM/a3bfe285-a145-4a5d-b69d-6d07841ff138.png?resizew=292)
![](https://img.xkw.com/dksih/QBM/2021/1/18/2638689905377280/2639746563096576/STEM/a3bfe285-a145-4a5d-b69d-6d07841ff138.png?resizew=292)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-01-19更新
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2卷引用:甘肃省天水市甘谷县第四中学2020-2021学年高三上学期第五次检测数学(理)试题
名校
解题方法
5 . 已知某几何体的三视图如图所示,其中俯视图中的圆弧为
圆周,则该几何体的体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/49c7fe7c-9153-449d-833b-6ebcfc374677.png?resizew=174)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/49c7fe7c-9153-449d-833b-6ebcfc374677.png?resizew=174)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 在直角三角形ABC中,AB=6,BC=8,AC=10,以AC边所在直线为轴旋转直角三角形ABC,求所得旋转体的体积.
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7 . 如图所示,在四棱锥P-ABCD中,四边形ABCD为平行四边形,△PCD为正三角形,∠BAD=30°,AD=4,AB=2
,平面PCD⊥平面ABCD,E为PC中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/d9921a7f-cfff-401d-bbd4-a24e3f63ebf0.png?resizew=191)
(1)证明:BE⊥PC;
(2)求多面体PABED的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/d9921a7f-cfff-401d-bbd4-a24e3f63ebf0.png?resizew=191)
(1)证明:BE⊥PC;
(2)求多面体PABED的体积.
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8 . 已知某几何体是由一个三棱柱和一个三棱锥组合而成的,其三视图如图所示,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/f2139794-53de-4feb-b47b-11eef0d658ed.png?resizew=155)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/f2139794-53de-4feb-b47b-11eef0d658ed.png?resizew=155)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-04-18更新
|
477次组卷
|
4卷引用:【校级联考】甘肃省白银市靖远县2019届高三第四次联考数学(文)试题
9 . 我国南北朝时期数学家祖暅,提出了著名的祖暅原理:“缘幂势既同,则积不容异也”.“幂”是截面积,“势”是几何体的高,意思是两等高几何体,若在每一等高处的截面积都相等,则两几何体体积相等.已知某不规则几何体与右侧三视图所对应的几何体满足“幂势既同”,其中俯视图中的圆弧为
圆周,则该不规则几何体的体积为
![](https://img.xkw.com/dksih/QBM/2019/4/12/2180898187788288/2181467124088832/STEM/d43f8f00-7c71-4211-9124-295fb848fbe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://img.xkw.com/dksih/QBM/2019/4/12/2180898187788288/2181467124088832/STEM/d43f8f00-7c71-4211-9124-295fb848fbe4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-04-13更新
|
959次组卷
|
9卷引用:甘肃省兰州市第一中学2020届高三冲刺模拟考试(三)数学(理)试题
10 . 在平行四边形
中,
过
点作
的垂线交
的延长线于点
,
.连结
交
于点
,如图1,将
沿
折起,使得点
到达点
的位置.如图2.
证明:直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cdb19af3fe72be6542fb0d94f285b2.png)
若
为
的中点,
为
的中点,且平面
平面
求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc97c60d1d177f28113ea511a61d3931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6166b9a5437671bcba31e17c375eb39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.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/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cdb19af3fe72be6542fb0d94f285b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b77a5c3865855fbb3d24f9522ced8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c707f0202ec1aa233e1eeacc7a4587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48769011a648f0b274a3f1acb8531758.png)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174654959190016/2175408525426688/STEM/9a1066c8-fe22-4924-988d-24a33cc08c70.png)
您最近一年使用:0次
2019-04-04更新
|
912次组卷
|
8卷引用:甘肃省敦煌市2021届高三三模数学(文)试题