如图,在三棱柱
中,四边形
为菱形,
,
分别为
的中点,
.
平面
;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719de37e2bbf07a97de22f3353fabac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cca04b2a2b61d62a809776670a60c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661b922577e57930134daf2bd8bc7650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a40b8598e6b0a3da1505e711a40760b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5804cce8a179329d95fea2330c760a.png)
2024·全国·模拟预测 查看更多[1]
(已下线)2024年普通高等学校招生全国统一考试数学文科押题卷(五)
更新时间:2024-05-07 07:55:35
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】已知三棱柱
(如图所示),底面
是边长为2的正三角形,侧棱
底面ABC,
,E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/fef62030-ba07-4813-81c2-1efb85c9ab3d.png?resizew=213)
(1)若G为
的中点,求证:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8cb98c0adee7ca698d8b17dacb845b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/fef62030-ba07-4813-81c2-1efb85c9ab3d.png?resizew=213)
(1)若G为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78870dc2f09416598a67ff7c61023a54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea124cef7ab3fd8069243e9894d1c59.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd5d1b72eccfb437d85ae09382026ee.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图1,已知矩形
中,点
是边
上的点,
与
相交于点
,且
,
,
,现将
沿
折起,如图2,点
的位置记为
,此时
.
![](https://img.xkw.com/dksih/QBM/2016/12/28/1619434596048896/1619434596679680/STEM/ba485cef0ee04f858e0b1b954812018b.png?resizew=281)
(1)求证:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348fb71fbc47fd87e9ce011652ef4186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2030e95242c1bd09fb69969eaf9410d5.png)
![](https://img.xkw.com/dksih/QBM/2016/12/28/1619434596048896/1619434596679680/STEM/ba485cef0ee04f858e0b1b954812018b.png?resizew=281)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ae29408c85e28ed37859655a33f1fa.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46dd4c071d5a3c9b48d4f68ddc7de358.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,在四棱锥
中,底面
是正方形,
、
分别为
、
的中点,侧面
底面
.
![](https://img.xkw.com/dksih/QBM/2018/5/15/1945970906955776/1947520748519424/STEM/c0c15cc01c6e47f7849d75f0c74aef73.png?resizew=151)
(1)求证:
平面
;
(2)若
,求证:平面
平面
.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2018/5/15/1945970906955776/1947520748519424/STEM/c0c15cc01c6e47f7849d75f0c74aef73.png?resizew=151)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16835e3f230ba3f543b6804e445e283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7b9bf7332256ac478041957fa2a55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.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】如图所示的几何体是由等高的直三棱柱和半个圆柱组合而成,点
为
的中点,
为半个圆柱上底面的直径,且
,
.
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/c6474169-cd01-45e4-87ab-74f0ec2fe2f9.png?resizew=200)
(1)证明:平面
平面
;
(2)若
是线段
上一动点,求直线
与平面
所成角的正弦的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c44512cb86bcf48c6d21357f45b533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4cda687dd3f74d58635c5e053b40887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f25107ecb3a7b5d09446830613fa325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/c6474169-cd01-45e4-87ab-74f0ec2fe2f9.png?resizew=200)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63e0348591830b2ca28a1784ce634b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7090ad13cf3664c89cdb2288779a9669.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a16f5621716bfef7a056a3f2712feb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7090ad13cf3664c89cdb2288779a9669.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,
平面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/50ee5e1b-4e63-42ba-b879-9db5bd6a7889.png?resizew=185)
(1)求证:平面
平面
.
(2)求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103962a76f65a0e491d0c39f0144b88b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/50ee5e1b-4e63-42ba-b879-9db5bd6a7889.png?resizew=185)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】如图所示,已知AB⊥平面BCD ,BC⊥CD,M,N分别是AC,AD的中点.
(1)求证: MN//平面BCD;
(2)求证: CD⊥平面ABC.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/f23d6bb1-5c02-4190-a3c2-cad232f36969.png?resizew=133)
(1)求证: MN//平面BCD;
(2)求证: CD⊥平面ABC.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】如图,在四棱锥
中,
,
,
,
,点
,
分别为棱
,
的中点,且
.求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/3ff3e296-ff3f-4cc4-8380-7d9d38aea1ca.png?resizew=197)
(1)平面
平面
;
(2)平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6045266f6db39e41b7abde762d9e9a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87261df80b82221732329b6ef3fdda7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71826134c3080aa75becc655a9089855.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3587087b63240599c46140581ddd7adf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/3ff3e296-ff3f-4cc4-8380-7d9d38aea1ca.png?resizew=197)
(1)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b427c2978db0670dc4cb96bffea7e1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,在底面为矩形的四棱锥
中,
,
,且
,其中
分别是线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/e3880c76-dedd-4d04-aa07-540d5ad9713b.png?resizew=173)
(1)证明:
平面
(2)证明:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(3)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/50569f012f6c1f3cfe0613972328ff0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba208bf017452b933d5da204b53ee6a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1445754896ac295088a7f1b5b0c30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb46aaae98bce8e66848e09c2c1cdbd4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/e3880c76-dedd-4d04-aa07-540d5ad9713b.png?resizew=173)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf65b8884909d735d575efe81a2d2ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(3)求:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次