如图,在高为2的正三棱柱
中,
是棱
的中点.
(2)求三棱锥
的体积;
(3)设
为棱
的中点,
为棱
上一点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78490ad8408d831761e8ebdafa25978c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ce034f2d6b7ac835ce46d58ea945ec.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d022b233edaffb56b84d53bac243e1c6.png)
23-24高一下·湖南岳阳·期中 查看更多[3]
湖南省岳阳县第一中学、汨罗市第一中学2023-2024学年高一下学期五月联考数学试题(已下线)专题07 球与几何体的切、接及立体几何最值问题-期末考点大串讲(苏教版(2019))(已下线)高一第二学期期末模拟卷01-重难点突破及混淆易错规避(苏教版2019必修第二册)
更新时间:2024-06-18 08:54:01
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相似题推荐
解答题-问答题
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(0.65)
【推荐1】长方体
中,
,
,
,一只蚂蚁从点A出发沿表面爬行到点
,求蚂蚁爬行的最短路线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac268f79a4a776c81fb86a6476c83adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
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【推荐2】如图,在三棱柱
中,平面
平面ABC,
,
,D是BC的中点,N为线段AC上的动点.
![](https://img.xkw.com/dksih/QBM/2021/7/21/2769084771721216/2774893889003520/STEM/c841ca58-7be9-427e-8b53-6bf935670e5f.png?resizew=252)
(1)证明:平面
平面
;
(2)若
的最小值为
,求过
,
,D三点的截面将该三棱柱分得的两部分的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cdaadeae37736a1e6dd93fa1fe712f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c502717f7e7f17d52565cf2f74a8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e734a3b768fd7e422801704d4a7aeb.png)
![](https://img.xkw.com/dksih/QBM/2021/7/21/2769084771721216/2774893889003520/STEM/c841ca58-7be9-427e-8b53-6bf935670e5f.png?resizew=252)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4ba140c31232561fc4183d9cef9010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13df2b24c799493184377772f7077f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbff61fe9d4e93d7cc338489d1c99c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
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解答题-证明题
|
适中
(0.65)
【推荐3】如图,三棱柱
中,侧棱
平面
,
为等腰直角三角形,
,且
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/5fa4f207-e09d-4574-b170-031170af723a.png?resizew=188)
(1)求证:
平面
;
(2)求锐二面角
的余弦值;
(3)若点
是
上一点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.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/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c72b3629f97ff90ca20d40ff93e12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1857eadd6b23a87a1a5b4ffff584efd9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/5fa4f207-e09d-4574-b170-031170af723a.png?resizew=188)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a76f52ae3ef071a5084d09ec035c80c.png)
(2)求锐二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d061bf4e0c0fc7dbae8f13d1d603de.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9b54f882b342b056924785464fa79e.png)
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解题方法
【推荐1】在直三棱柱
中,
,
,
,M是侧棱
上一点,设
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/9af2a46c-2af7-42a3-9828-57067ad2c194.png?resizew=128)
(1)若
,求多面体
的体积;
(2)若异面直线BM与
所成的角为
,求h的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7e8dd831f4edc711c0f7d5f078f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e97fcdcfd6183b976a61ef3222c607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d4b759e341f967a93fc478e795b72f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/9af2a46c-2af7-42a3-9828-57067ad2c194.png?resizew=128)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea196ac1aadb7be4109c02baeadce25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f3f4d2809dd4eb3e1df385ebfdcaf6c.png)
(2)若异面直线BM与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】在长方体ABCD-A1B1C1D1中,
.
(1)求四面体ACB1D1体积的最大值;
(2)若二面角B-AC-D1的正弦值为
,求ABCD-A1B1C1D1的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e273627c972984e811b77343eb560a52.png)
(1)求四面体ACB1D1体积的最大值;
(2)若二面角B-AC-D1的正弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe2c533dbc23a34518f72f3cb14f330.png)
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【推荐1】如图,在四棱锥
中,
平面
,
为
中点,__________.从①
;②
平面
.这两个条件中选一个,补充在上面问题中,并完成解答.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/b8513dd5-e39d-4ff9-bf3b-b04033cbc94a.png?resizew=172)
(1)求证:四边形
是直角梯形;
(2)求
的体积.
![](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/88d1cc93af5ec52514a759eeeb472d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2abeb7e4413d8faefae3424083d84079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa1162d5481e2441fe5bc0d49a576b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963a91995abd4927d75406d16e10a81f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/b8513dd5-e39d-4ff9-bf3b-b04033cbc94a.png?resizew=172)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc03e457c29516497914f5d5d2c38b91.png)
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(0.65)
名校
解题方法
【推荐2】如图,在四棱锥
中,
底面
,
,
,
,
.
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](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/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b156a7da0764044e81824a7216be6149.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/12/1b7094e0-3761-4c6b-8a94-363674268830.png?resizew=143)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10c16d2d9d22c4b34ddd965e26aa0d7.png)
您最近一年使用:0次