名校
解题方法
1 . 已知四棱锥
,底面ABCD是正方形,
平面
,
,PC与底面ABCD所成角的正切值为
,点M为平面
内一点(异于点A),且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea136052aa3762e67579e13172259e7.png)
A.存在点M,使得![]() ![]() |
B.存在点M,使得直线![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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解题方法
2 . 如图,在正四面体
中,
分别为侧棱
上的点,且
,
为
的中点,
为四边形
内(含边界)一动点,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a4f5888b5870a2e36639b0b0c36f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bb1063e139610045f3bca5ca0b2766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd2431234007c5216d0d94b4afbb029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e826b8202fa0e17245dcc68426c923a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f0310d760d1969544578afa06bdd96.png)
A.![]() |
B.五面体![]() ![]() |
C.点![]() ![]() |
D.![]() ![]() ![]() |
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名校
解题方法
3 . 在长方体
中,
,E为
的中点,点P满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513a78586e0fdee7f6287b964bcf68d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beba8f8d145e1fc05daccc6dd5f11510.png)
A.若M为![]() ![]() |
B.存在点P使得![]() |
C.当![]() ![]() ![]() ![]() |
D.若Q为长方体![]() ![]() ![]() ![]() |
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名校
4 . 如图1,在等腰梯形
中,
,且
为
的中点,沿
将
翻折,使得点
到达
的位置,构成三棱锥
(如图2),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c30955b24e40384ab973b8fd6c5aeca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb4c6e9a723aa843e6ba62d7c1a3a6c.png)
A.在翻折过程中,![]() ![]() |
B.在翻折过程中,二面角![]() |
C.当三棱锥![]() ![]() ![]() ![]() |
D.点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-04-13更新
|
808次组卷
|
3卷引用:吉林省吉林地区普通高中2024届高三第三次模拟考试数学试题
5 . 已知球
是棱长为2的正方体
的内切球,
是
的中点,
是
的中点,
是球
的球面上任意一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.若![]() ![]() ![]() |
B.三棱锥![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() |
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名校
解题方法
6 . “阿基米德多面体”也称为半正多面体,是由边数不全相同的正多边形围成的多面体,它体现了数学的对称美.如图所示,将正方体沿交于一顶点的三条棱的中点截去一个三棱锥,共可截去八个三棱锥,得到八个面为正三角形、六个面为正方形的一种阿基米德多面体.已知
,则关于图中的半正多面体,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
A.该半正多面体的体积为![]() |
B.该半正多面体过![]() ![]() |
C.该半正多面体外接球的表面积为![]() |
D.该半正多面体的表面积为![]() |
您最近一年使用:0次
2024-04-13更新
|
1227次组卷
|
5卷引用:2024届山西省平遥县第二中学校高三冲刺调研押题卷数学(二)
7 . 已知正方体
的棱长为1,
,
分别为棱
,
上的动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
A.四面体![]() | B.四面体![]() |
C.四面体![]() ![]() | D.四面体![]() ![]() |
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8 . 如图,多面体
是由两个全等三棱锥拼接而成,点
与点
关于平面
对称,
是等边三角形,
.下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd53169fbc871e8732fd8040a926943.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/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf832217cee8a4b9acad0531714fb91d.png)
A.![]() | B.![]() ![]() |
C.若![]() ![]() | D.多面体![]() |
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名校
9 . 已知正方体
的棱长为1,下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() |
B.四面体![]() ![]() |
C.与正方体![]() ![]() |
D.![]() ![]() ![]() |
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2024·全国·模拟预测
10 . 已知三棱锥
中,点P在平面ABC内的投影为D,四边形ABCD为正方形,若
,记
,
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80fe07b0fb0f86cc6e4d1cc6e801673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79f2cfa5e197f859d8cac3d2287ece9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39282450bc4833027a7bdfa81c39f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59698d6b4d3800ea8911ce6dd142bd8.png)
A.![]() |
B.![]() |
C.三棱锥![]() ![]() |
D.三棱锥![]() ![]() |
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