1 . 已知四边形
用斜二测画法画出的直观图为直角梯形
,如图所示,
,
,
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edde249778f2496c94ffa0ec13300b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9598c8022d6da9d9a29615210053432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd7a4b6a4e3c1e9d2ed50c114b6293c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25964c07565884382d4106aedadcb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebf66b14f7390cefa396e69911be9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/05deba84-fca0-4c66-8be2-0e460eeef8ce.png?resizew=161)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
2 . 在四面体
中,已知底面
为正三角形,则“三棱锥
为正三棱锥”是“
与
均为等腰三角形”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
A.充要条件 | B.必要不充分条件 |
C.充分不必要条件 | D.既不充分也不必要条件 |
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2023-09-19更新
|
279次组卷
|
4卷引用:河北省邢台市2022-2023学年高一下学期期中数学试题
河北省邢台市2022-2023学年高一下学期期中数学试题(已下线)第01讲 基本立体图形-《知识解读·题型专练》(已下线)模块一 专题5 基本立体图形和直观图 讲福建省安溪第八中学2023-2024学年高一下学期期中模拟训练(1)数学试题
3 . 如图,四边形
是边长为2的正方形,
与
均为正三角形,将
,
与
向上折起,使得
三点重合于点
,得到三棱锥
.
平面
.
(2)设
为棱
上一点,二面角
为
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217d37ca5469a57cb7417a2ac0d58efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217d37ca5469a57cb7417a2ac0d58efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad74f90f6e6893d41d31b52407869da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4c18aba9681a8475968248764d4c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c309e58bf083bad13abd549720a63a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c3762eb09409441a1d1d7c0ccbbe60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77401a1d8edc677454f17566e5a12834.png)
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2023-09-19更新
|
213次组卷
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2卷引用:河北省邢台市2022-2023学年高一下学期期中数学试题
名校
解题方法
4 . 已知球
的表面积为
,平面
截球
所得的截面面积为
,则以
为顶点,截面为底面的圆锥的体积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c899dd9f2d16790c36fb2590b1fb7407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf1f865bafd4a820406d336d99f8091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2023-09-19更新
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3卷引用:河北省邢台市2022-2023学年高一下学期期中数学试题
5 . 据重心低更稳定的原理,中国古代的智者发明了一种儿童玩具——不倒翁,如图所示,该不倒翁由上底面半径为2cm、下底面半径为3cm且母线为
的圆台与一个半球两部分构成,若半球的密度为圆台密度的3倍(圆台与半球均为实心),圆台的质量为190g,则该不倒翁的总质量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4737f628cb575daf05f7ea4391352218.png)
A.370g | B.490g | C.650g | D.730g |
您最近一年使用:0次
2023-09-19更新
|
332次组卷
|
4卷引用:河北省邢台市2022-2023学年高一下学期期中数学试题
河北省邢台市2022-2023学年高一下学期期中数学试题(已下线)模块一专题6《简单几何体的表面积和体积》单元检测篇A基础卷福建省安溪第八中学2023-2024学年高一下学期期中模拟训练(1)数学试题(已下线)8.3.2 圆柱、圆锥、圆台、球的表面积和体积-同步精品课堂(人教A版2019必修第二册)
解题方法
6 . 如图,在直三棱柱
中,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/17e60baf-6cb3-4ded-9782-b2d3a941e11a.png?resizew=150)
(1)证明:
平面
.
(2)若
是正三角形,
,
,求三棱柱
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/17e60baf-6cb3-4ded-9782-b2d3a941e11a.png?resizew=150)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c920d02068d0e63ffdab70786c526d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed2f706801662432b68797e72647c6e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5cc6961b320ced1383f6171016ad2e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
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7 . 已知圆锥
(
为圆锥顶点,
为底面圆心)的母线长为
,高为
,线段
为底面圆的一条直径,
为线段
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976260cbf5e30856d4fd37a4b0a671a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c076056906cd59f7c4f782a4db28d907.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/d2be49c37e30a3ced0364c3e74d8c687.png)
A.底面圆的周长为![]() |
B.圆锥的侧面展开图是圆心角为![]() |
C.直线![]() ![]() |
D.沿圆锥![]() ![]() ![]() ![]() |
您最近一年使用:0次
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2卷引用:河北省邢台市2022-2023学年高一下学期期中数学试题
解题方法
8 . 在正方体
中,
,
,
,
分别为
,
,
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.![]() ![]() |
B.平面![]() ![]() |
C.![]() ![]() |
D.![]() |
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解题方法
9 . 如图,正方体
的棱长为2,
,
,
,
分别为
,
,
,
的中点,沿平面
,
,
,
截去4个小三棱锥,则多面体
的外接球表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c878e789e07e33d65c8a18cf2c58a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03bdd6707990ceb7114ac3fd9c5df309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a2fa804978906c1f4bd1908b084592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7c5605de2806542f3e15e07542d4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d403b6254ba2a0bdcbba6ee604085faf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/12/0cde3164-34c2-4b46-ac87-f5c79ac7e66c.png?resizew=180)
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解题方法
10 . 已知某圆台的体积为
,其上底面和下底面的面积分别为
,
,且该圆台两个底面的圆周都在球
的球面上,则球
的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4db467e82b9cee033d027e6a45529b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf1f865bafd4a820406d336d99f8091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997b5842f3d4eae1989debee9ae41b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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