名校
1 . 如图 1,在直角梯形
中,
,且
.现以
为一边向外作正方形
,然后沿边
将正方形
翻折,使
平面与平面
垂直,
为
的中点,如图 2.
![](https://img.xkw.com/dksih/QBM/2018/1/19/1863926160793600/1865193617375232/STEM/ae413ed57ad34ab0b5fb8c7bb905086b.png?resizew=449)
(1)求证:
平面
;
(2)求证:
平面
;
(3)求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0465d52848d924b0576172c9b22a831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0046177466c78f08d45449dc5639bf38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://img.xkw.com/dksih/QBM/2018/1/19/1863926160793600/1865193617375232/STEM/ae413ed57ad34ab0b5fb8c7bb905086b.png?resizew=449)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac480d8d9d7821b62a603cf5cfda236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
您最近一年使用:0次
2018-01-21更新
|
2295次组卷
|
6卷引用:广西陆川中学2017-2018学年高一上学期期末考试数学试题
2 . 如图,四面体ABCS中,SA、SB、SC两两垂直且相等,点M和点N为线段SA,SB的中点.
![](https://img.xkw.com/dksih/QBM/2018/1/11/1858190046101504/1859000958238720/STEM/776a33e01881443b86128b6dafe1f66f.png?resizew=120)
(1)求证:MN
平面ABC;
(2)求BC与平面SAB所成的角.
![](https://img.xkw.com/dksih/QBM/2018/1/11/1858190046101504/1859000958238720/STEM/776a33e01881443b86128b6dafe1f66f.png?resizew=120)
(1)求证:MN
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce1ddb7003591b033b1a58dc55ede7d.png)
(2)求BC与平面SAB所成的角.
您最近一年使用:0次
3 . 如图,底面是正三角形的直三棱柱
中,
是
的中点,
.
![](https://img.xkw.com/dksih/QBM/2018/1/3/1852675130728448/1853320546902016/STEM/fd619975-12b4-49ff-87af-d6f95becc7df.png)
(1)求证:
平面
;
(2)求异面直线
与
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://img.xkw.com/dksih/QBM/2018/1/3/1852675130728448/1853320546902016/STEM/fd619975-12b4-49ff-87af-d6f95becc7df.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554923047631d16320c2ba39abeee99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
您最近一年使用:0次
2018-01-04更新
|
695次组卷
|
2卷引用:广西百色市平果县第二中学2019-2020学年高一下学期期中考试数学试题
名校
解题方法
4 . 如图所示,四棱锥
中,四边形
是直角梯形,
底面
,
为
的中点,
点在
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/c8692aee-1cff-48e3-ac3b-b0ec3b798f4a.png?resizew=195)
(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/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923ccdf79a1b5f4020b68b339a48d2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0b9f53b4b1ad97cbd9195163d0abf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19bfc3ea403f00432a246a0a49de0b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/c8692aee-1cff-48e3-ac3b-b0ec3b798f4a.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2017-08-18更新
|
126次组卷
|
2卷引用:广西南宁二中2016-2017学年高一下学期期末考试数学(文)试题
5 . 如图,
是平行四边形,
平面
,
,
,
,
.
(1)求证:
平面
;
(2)求证:平面
平面
;
(3)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95475bfc06e884754eb4a455c3f434e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb40aec3a0c136c9f18b9ce5983df73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b5d2943803894bc5d204e75e2d172b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f04edd173055da613832b187737ce4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d31430a87a688a727b86e4001dcb3e6.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356f46276f25c78bab48c1f9447a2a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8257b6bd25104e07b9ad935c0a3aac4.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd5861601a5e5aaa35dc70b902fd381.png)
![](https://img.xkw.com/dksih/QBM/2017/4/17/1667603182772224/1667961547694080/STEM/ba8182d8-d3fa-4043-b146-405bc8344c48.png?resizew=255)
您最近一年使用:0次
2017-04-17更新
|
1489次组卷
|
3卷引用:广西贺州市富川高级中学2020-2021学年高一下学期期中数学(理)试题
名校
解题方法
6 . 如图所示,四棱锥
的底面为直角梯形,
,
,
,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/2017/3/27/1652813555171328/1657656693293056/STEM/dc5f42c0c6cf4ca1bfb403585a5fa154.png?resizew=242)
(1)求证:
平面
;
(2)已知平面
底面
,且
,在棱
上是否存在点
,使
?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4ab7e657f01bdfa235f8c4d6681d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f1161e0345b3646c71365430dccbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2017/3/27/1652813555171328/1657656693293056/STEM/dc5f42c0c6cf4ca1bfb403585a5fa154.png?resizew=242)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7175df06e33cad4e6bbc3f2f6b0a2986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)已知平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e8973f78fa457fc5477abde35c9d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b8fa4cdd66abe061fd17a0d2333eaa.png)
您最近一年使用:0次
2017-04-03更新
|
596次组卷
|
2卷引用:【全国百强校】广西桂林市第十八中学2017-2018学年高一下学期期中考试数学试题
解题方法
7 . 如图,长方体ABCD-A1B1C1D1中,AB=AD=1,点P为DD1的中点.
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605542539264/1572605548642304/STEM/a7f887ef268f489687bff0676052118d.png?resizew=227)
(1)求证:直线BD1//平面PAC;
(2)求证:平面PAC⊥平面BDD1.
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605542539264/1572605548642304/STEM/a7f887ef268f489687bff0676052118d.png?resizew=227)
(1)求证:直线BD1//平面PAC;
(2)求证:平面PAC⊥平面BDD1.
您最近一年使用:0次
8 . 如图,四棱柱
中,侧面
为矩形,
平面
,
平面
,E、F分别为
、
的中点,且
,
.
(1)求证:
∥平面
;
(2)求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9db73dad37a8a07a7ccc49101db545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/7e14c359-488a-443f-9ae4-f816a4502fd9.png?resizew=200)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9539f8fb13345b449274b67bbda995db.png)
您最近一年使用:0次
2016-12-04更新
|
619次组卷
|
2卷引用:2015-2016学年广西河池市高一上学期期末数学试卷
9 . 在四棱锥
中,底面
是边长为
的菱形,
,
面
,
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572477973397504/1572477979598848/STEM/b8c9fb6920d94515998282c6d4e63a1f.png?resizew=216)
(Ⅰ)求证:
面
;
(Ⅱ)求点
到面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.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/8fd3eb538f36e6e722e4ce125266b99b.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572477973397504/1572477979598848/STEM/b8c9fb6920d94515998282c6d4e63a1f.png?resizew=216)
(Ⅰ)求证:
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572477973397504/1572477979598848/STEM/835afb0831154e02982608e6ec78ae52.png?resizew=43)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37793a3a810e823e10c340986f55ddd.png)
(Ⅱ)求点
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572477973397504/1572477979598848/STEM/0d416f0f09a74c5f957f5faddbdceac5.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37793a3a810e823e10c340986f55ddd.png)
您最近一年使用:0次
2016-12-04更新
|
658次组卷
|
4卷引用:2015-2016学年广西柳州铁路一中高一12月月考数学试卷
10 . 如图,在三棱锥
中,平面
平面
,
为等边三角形,
且
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/2018/7/7/1983218060263424/1987447006707712/STEM/dd9a1459c6cf4582bed9ac4a722f1abe.png?resizew=147)
(1)求证:
平面
;
(2)求证:平面
平面
;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0770c6d742b68640b49843bcfdcd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabdd3e13e1cac7abb2d6ebfcd3145ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2cbcf1a679d701806db233b964e272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431275773afb47dfa963ca864c5cd460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae0edd54911bf873885f5b9b0887b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fecdcc3fe7fe83e3ad38d3bc11cd7c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97e22c9dd88a2510de9e5a309191934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54cb2decd0d50d4031f7e7b7cb34fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48ac31e4da45e6a4a1444ec08bab8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d6a2c7e0a0c95ec70991d928900cfe.png)
![](https://img.xkw.com/dksih/QBM/2018/7/7/1983218060263424/1987447006707712/STEM/dd9a1459c6cf4582bed9ac4a722f1abe.png?resizew=147)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7579330b41773f881a3e3418098c2201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0e5715477d779a1d572a5d426bb67f.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8739cf509cc7621560bcb7d5cdf42fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea16b6b8669fb096862d278ae62cdd3b.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0770c6d742b68640b49843bcfdcd59.png)
您最近一年使用:0次
2016-12-03更新
|
4597次组卷
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32卷引用:广西陆川县中学2017-2018学年高一下学期开学考试数学(理)试题
广西陆川县中学2017-2018学年高一下学期开学考试数学(理)试题广西陆川县中学2017-2018学年高一下学期开学考试(理) 数学试题广西柳州市二中2018-2019学年高一下学期第一次月考数学试题2015-2016学年宁夏银川一中高一上学期期末考试数学试卷2015-2016学年河北省冀州市中学高一下开学考试数学试卷2015-2016学年河南省南阳市高一上学期期末数学试卷2015-2016内蒙古杭锦后旗奋斗中学高一下期末数学试卷2016-2017学年湖南省益阳市高一上学期期末考试数学试卷河北省武邑中学2017-2018学年高一上学期第三次月考数学试题河南省商丘市九校2017-2018学年高一上学期期末联考数学试题辽宁省营口中学2017-2018学年高一数学上学期期末考试试题辽宁省营口市2017-2018学年高一4月月考数学试题【校级联考】甘肃省通渭县2017-2018学年高一上学期期末考试数学试题人教A版 全能练习 必修2 模块结业测评(一)人教A版(2019) 必修第二册 逆袭之路 第八章 立体几何初步 本章整合提升人教B版(2019) 必修第四册 逆袭之路 第十一章 立体几何初步 本章整合提升2015年全国普通高等学校招生统一考试文科数学(北京卷)2015-2016学年新疆石河子二中高二上学期期末数学试卷2016-2017学年山东陵县一中高二理12月月考数学试卷2016-2017学年山东陵县一中高二文12月月考数学试卷2016-2017学年山东省德州市高二上学期期末检测数学(文)试卷甘肃省高台县第一中学2016-2017学年高二下学期期末考试数学(文)试题云南民族大学附属中学2017-2018学年高二12月月考数学(文)试题2018届高考数学高考复习指导大二轮专题复习:专题五 立体几何 测试题5河北省邯郸市永年区第二中学2017-2018学年高二下学期期末考试数学(文)试题【全国百强校】湖北省襄阳市第四中学2016-2017学年高二数学(理)测试题(十)试题【校级联考】广东省汕头市达濠华侨中学,东厦中学2019届高三上学期第二次联考数学(文)试题安徽省六安市霍邱县第一中学2018-2019学年高二上学期期中考试数学(文)试题河北省唐山市遵化市2019-2020学年高二上学期期中数学试题辽宁省铁岭市六校协作体2019-2020学年高三11月月考数学(文)试题北京十年真题专题07立体几何与空间向量专题08立体几何与空间向量(第一部分)