12-13高二上·浙江绍兴·期末
名校
1 . 某几何体的三视图及其尺寸如右图,求该几何体的表面积和体积.
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570751238987776/1570751244410880/STEM/c4411f9308594e06ab0bf189a42e2f6e.png)
您最近一年使用:0次
2016-12-01更新
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1421次组卷
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4卷引用:2011-2012学年浙江省绍兴一中高二第一学期期末考试理科数学
(已下线)2011-2012学年浙江省绍兴一中高二第一学期期末考试理科数学(已下线)2011-2012学年浙江省绍兴一中高二第一学期期末考试文科数学重庆市铜梁一中2018-2019学年高二10月月考数学(文)试题【全国百强校】河北省武邑中学2018-2019学年高二上学期第二次月考数学(文)试题
12-13高二上·浙江绍兴·期末
2 . 如图,在几何体
中,四边形
为平行四边形,且平面
平面
,
,
,且
,
为
中点.
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570751238987776/1570751244460032/STEM/b6645538-fe21-4ab4-a3ae-21ec8c93c99d.png?resizew=330)
(1)证明:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92614f668e931b43b57fd46c79dd06d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570751238987776/1570751244460032/STEM/b6645538-fe21-4ab4-a3ae-21ec8c93c99d.png?resizew=330)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5981445b6f2a6c58974158d96a4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc9ffc43a56921fe79f8602636b8b0f.png)
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3 . 如图,在三棱锥
中,平面
平面
,,
平面
,
为线段
的中点.
(Ⅰ)求证:
平面
;
(Ⅱ)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446983c2905a9a039e04eb6541fc2b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d89a6fe69090ec54e66b6814d033392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c3aec3e9c309e72d096c0a86f4e1a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fa8c8fb285d885edee573c9ce5d7c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e246a29ddb67de6e83dc3f106ecdf16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93bde09b4d3ca17675965c995f3f5573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8acde6a4543f7c7dc745c542cda311b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae4b97dd6e72a5ec06f44164a91b429f.png)
(Ⅱ)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e173df09d90b87e2eae24493308576.png)
![](https://img.xkw.com/dksih/QBM/2012/2/16/1570743662927872/1570743668064256/STEM/0d7fe79ced1f45b98bd8ad28e80784ec.png?resizew=226)
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4 . 如图,在三棱锥
中,
两两垂直且相等,过
的中点
作平面
,且
分别交
于
,交
的延长线于
.
![](https://img.xkw.com/dksih/QBM/2012/2/16/1570743384391680/null/STEM/cb6f51cf8acc47bab5507fa73698d1c6.png?resizew=174)
(Ⅰ)求证:
平面
;
(Ⅱ)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7654428b93930da90a37fc74a826c36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67135a4e7bd12db62999f342d5cf9d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c3cc1f331dbb2248b0829039df7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://img.xkw.com/dksih/QBM/2012/2/16/1570743384391680/null/STEM/cb6f51cf8acc47bab5507fa73698d1c6.png?resizew=174)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc72e22c2c9701c1ec79c4a1c10951c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d905520a2c15614e156f778f24a0d2f3.png)
您最近一年使用:0次
12-13高三上·浙江温州·期末
5 . 在五棱锥
中,
,
.
![](https://img.xkw.com/dksih/QBM/2012/2/15/1570741600116736/1570741605646336/STEM/22cd666f-cd0a-461b-b2dc-70f137384535.png?resizew=165)
(1)求证:
平面
;
(2)求二面角
平面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be89b9d1709d7974a108142c5fa2ccec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc050dc7360595838caa9384c704b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e766abf1fee230a0fb21dbd5e5f100c1.png)
![](https://img.xkw.com/dksih/QBM/2012/2/15/1570741600116736/1570741605646336/STEM/22cd666f-cd0a-461b-b2dc-70f137384535.png?resizew=165)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4c60cb9a31fce2ff65ddd03194c8ed.png)
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12-13高二上·浙江温州·期末
6 . 如图所示多面体
,其底面
为矩形且
,四边形
为平行四边形,点
在底面
内的投影恰好是
的中点.
![](https://img.xkw.com/dksih/QBM/2012/2/7/1570721337622528/1570721343070208/STEM/ea44ee44-d6bb-4b51-a368-2c0d99be9e02.png?resizew=240)
(1)已知
为线段
的中点,证明:
平面
;
(2)若二面角
大小为
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fc1129846f37afdafd751627c450d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b56d31ac77c8631d64f6b6f1546625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2012/2/7/1570721337622528/1570721343070208/STEM/ea44ee44-d6bb-4b51-a368-2c0d99be9e02.png?resizew=240)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55537f7dbac74c17fe0dc386dcdab3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9d40f58f5fd5fb401a529a42b93ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
您最近一年使用:0次
7 . 在直三棱柱
中,
分别为棱
的中点,
为棱
上的点.
(1)证明:
;
(2) 当
时,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0de167c7937ab0ccefe82aa7f52bf01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63527e91c9c7659c7dd7efb917c8bc7d.png)
(2) 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c43f7ca25ae65ac6c4b57a42f166af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e365dee3138635eaa4c77c05801ce9e.png)
![](https://img.xkw.com/dksih/QBM/2012/2/4/1570714515013632/1570714520428544/STEM/5fd27360575d4350a714fc73857ab72c.png?resizew=216)
您最近一年使用:0次
8 . 如图,正方体
中,
分别为
与
的中点.
![](https://img.xkw.com/dksih/QBM/2011/12/5/1570556496969728/1570556501909504/STEM/dd12af7389f34b9bba362c62fcacb1d1.png?resizew=152)
(Ⅰ)求证:
平面
;
(Ⅱ)求二面角
的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/2011/12/5/1570556496969728/1570556501909504/STEM/dd12af7389f34b9bba362c62fcacb1d1.png?resizew=152)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1167959ebbc724159e6181759b58658b.png)
(Ⅱ)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd0a3b418f3b1ae176d2e9c5b4987de.png)
您最近一年使用:0次
9 . 如图,在四棱锥E﹣ABCD中,底面ABCD为正方形,AE⊥平面CDE,已知AE=3,DE=4.
(Ⅰ)若F为DE的中点,求证:BE∥平面ACF;
(Ⅱ)求直线BE与平面ABCD所成角的正弦值.
(Ⅰ)若F为DE的中点,求证:BE∥平面ACF;
(Ⅱ)求直线BE与平面ABCD所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/2011/11/9/1570346597523456/1570346602921984/STEM/eaa5e34378d84620bb95c5eecf6b9174.png?resizew=169)
您最近一年使用:0次