名校
解题方法
1 . 如图,在棱长为2的正方体
中,点E,F分别为棱DC和
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/19/968e22b1-2ce1-4b31-bd01-51a349445a06.png?resizew=158)
(1)求证:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/19/968e22b1-2ce1-4b31-bd01-51a349445a06.png?resizew=158)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383bc7dd1960c2892a37ec0a90119556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7fd28b4e88ed1e12b4b589e5ce237f9.png)
您最近一年使用:0次
2022-06-17更新
|
771次组卷
|
5卷引用:江西省贵溪市实验中学2021-2022学年高二(三校生)下学期期末考试数学试题
2 . 如图所示,在四棱锥中
,
,
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/1f519bdc-3cb0-4389-b0ae-ba24023fe300.png?resizew=166)
(1)求证:
平面ADP;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ba2021caf4381dad4f73474912a8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e28b6a0398d826bfc7b45fc2b06d46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5ea309886e947ea7cb4b81716206fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72921fecf4ff29018f3bebaa01ff7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/1f519bdc-3cb0-4389-b0ae-ba24023fe300.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2022-06-13更新
|
372次组卷
|
2卷引用:江西省赣州市赣县第三中学2022-2023学年高二上学期10月月考数学试题
3 . 如图截角四面体是一种半正八面体,可由四面体经过适当的截角,即截去四面体的四个顶点所产生的多面体.如图,将棱长为3的正四面体沿棱的三等分点作平行于底面的截面得到所有棱长均为1的截角四面体.
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987791805448192/2996112876896256/STEM/88c078ea-20ef-4df6-863d-22d1bc8278b2.png?resizew=364)
(1)该截角四面体的表面积;
(2)该截角四面体的体积.
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987791805448192/2996112876896256/STEM/88c078ea-20ef-4df6-863d-22d1bc8278b2.png?resizew=364)
(1)该截角四面体的表面积;
(2)该截角四面体的体积.
您最近一年使用:0次
2022-06-07更新
|
716次组卷
|
3卷引用:江西省南昌市湾里管理局第一中学等六校2021-2022学年高二下学期期中联考数学(理)试题
名校
解题方法
4 . 如图,在四棱锥
中,
是边长为2的等边三角形,梯形
满足
,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/19/2982704490872832/2995536316547072/STEM/67246644-e9b1-4f9b-a933-931968ec1449.png?resizew=176)
(1)求证:
平面
;
(2)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e921f46d90e43f4517c55832b6280f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://img.xkw.com/dksih/QBM/2022/5/19/2982704490872832/2995536316547072/STEM/67246644-e9b1-4f9b-a933-931968ec1449.png?resizew=176)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcfacd208d769d01f1d4ef20313cd869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e77e93fb69b4c0716dde86f52e7406.png)
您最近一年使用:0次
2022-06-06更新
|
938次组卷
|
5卷引用:江西省赣州市教育发展联盟2021-2022学年高二下学期第8次联考数学(文)试题
江西省赣州市教育发展联盟2021-2022学年高二下学期第8次联考数学(文)试题(已下线)2022年全国高考甲卷数学(文)试题变式题9-12题重庆市实验中学校2021-2022学年高一下学期期末复习(三)数学试题辽宁省铁岭市六校协作体2021-2022学年高一下学期期末联考数学试题(已下线)2022年全国高考甲卷数学(文)试题变式题17-20题
名校
解题方法
5 . 已知四棱柱
中,底面
为菱形,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbb48c435c1ea5452cd9c9dd05e53ce.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e1f2b358853e95c336b9a22ae3975c.png)
为
中点,
在平面
上的投影
为直线
与
的交点.
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986140150194176/2995462735298560/STEM/d62241b4-c071-4a1c-a6f1-1940f0c5ebdb.png?resizew=269)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e558e598e2557894996a98ec8606f9a7.png)
(2)求三棱锥
的体积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a99be053c95aefbebe7460e50df572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbb48c435c1ea5452cd9c9dd05e53ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dd08de8071849229aa80d486344d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e1f2b358853e95c336b9a22ae3975c.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/3557809c066e68395b614535a7675e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986140150194176/2995462735298560/STEM/d62241b4-c071-4a1c-a6f1-1940f0c5ebdb.png?resizew=269)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e558e598e2557894996a98ec8606f9a7.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ffabe4ac32ca5de7bda6b18dff7490.png)
您最近一年使用:0次
6 . 如图所示,在四棱锥
中,底面ABCD为平行四边形,且∠BAP =∠CDP =90°.
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987894670639104/2995408588537856/STEM/a3dccc44-b3ad-4f97-90de-8ff1e62695b3.png?resizew=231)
(1)证明:平面PAB⊥平面PAD;
(2)若PA⊥PD,PA = PD = 2,AB = 4,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987894670639104/2995408588537856/STEM/a3dccc44-b3ad-4f97-90de-8ff1e62695b3.png?resizew=231)
(1)证明:平面PAB⊥平面PAD;
(2)若PA⊥PD,PA = PD = 2,AB = 4,求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b183492677d0457b8701c53d9fa1414.png)
您最近一年使用:0次
名校
解题方法
7 . 如图,在四棱锥
中,
平面
,
,
,
,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/ddffd45c-616b-4a70-8be4-a978ecde50ef.png?resizew=170)
(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/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975a48c102d686d23fc2212582af70b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19f0fcacac715a1200770516d1e4a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/ddffd45c-616b-4a70-8be4-a978ecde50ef.png?resizew=170)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc521258fcaeaf7acffc5ae98c3af6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d492a2248463e0c0199a25d0f76d23.png)
您最近一年使用:0次
2022-05-21更新
|
745次组卷
|
2卷引用:江西省大余中学2022-2023学年高二下学期期末学情调研数学试题
名校
解题方法
8 . 如图,四棱锥
中,侧面
是边长为
的正三角形,且与底面垂直,底面
是
的菱形,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/cc426f55-5d4e-429f-b17c-54201cc1b801.png?resizew=237)
(1)求证:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/cc426f55-5d4e-429f-b17c-54201cc1b801.png?resizew=237)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8db2bec6ebe672e8f83f24e9bdf4654.png)
您最近一年使用:0次
2022高三·河北·专题练习
9 . 如图所示正四棱锥
,
,P为侧棱
上的点.且
,求:
的表面积;
(2)侧棱
上是否存在一点E,使得
平面
.若存在,求
的值;若不存在,试说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f409bd56ffe630a63fa399f39e2251fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2883beed42e46f8f379b02ea3b68b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
(2)侧棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c9ca3af3eb8bc486f7b3f29f5065eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c372d059202ec388960b125d4a87dc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee29ea55624e5cbca858f47ef7ec49e.png)
您最近一年使用:0次
2022-05-10更新
|
3514次组卷
|
17卷引用:江西省遂川中学2021-2022学年高二上学期第二次月考数学(文)试题(A卷)
江西省遂川中学2021-2022学年高二上学期第二次月考数学(文)试题(A卷)(已下线)一轮复习大题专练46—立体几何(探索性问题2)-2022届高三数学一轮复习安徽省合肥市第十中学2021-2022学年高一下学期期中数学试题广东省普宁市第二中学2021-2022学年高一下学期期中数学试题广东省广州市八十六中2021-2022学年高一下学期期中数学试题河南省鹤壁市浚县浚县第一中学2021-2022学年高一下学期4月月考数学试题河北省张家口市张北县第一中学2021-2022学年高一下学期6月月考数学试题(已下线)专题30 直线、平面平行的判定与性质-2(已下线)第03讲 空间直线、平面的平行 (精讲)-2(已下线)空间直线、平面的平行黑龙江省齐齐哈尔市第八中学校2022-2023学年高一下学期期中数学试题陕西师范大学附属中学渭北中学2022-2023学年高一下学期5月月考数学试题陕西省咸阳市武功县普集高级中学2023届高三下学期5月校模考(二)数学(文)试题(已下线)13.2.4 平面与平面的位置关系(1)-【帮课堂】(苏教版2019必修第二册)(已下线)8.5.2平面与平面平行(已下线)专题19 平面与平面平行-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)专题05 空间直线﹑平面的平行-《知识解读·题型专练》(人教A版2019必修第二册)
名校
解题方法
10 . 如图,在四棱锥
中,四边形
为菱形,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/3/2971600766181376/2975068843212800/STEM/f600fc1ad2de49ccbcde8e4527428861.png?resizew=254)
(1)证明:
平面
;
(2)若
,
,
,求三棱锥
的体积.
![](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/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d0710321d97361e5782124bbf7f0c9.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/2022/5/3/2971600766181376/2975068843212800/STEM/f600fc1ad2de49ccbcde8e4527428861.png?resizew=254)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a665ba024f2840ce5aef3765249341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f37269a62f97efcf4961ef2ca33c6def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7ed85b76fb4c5e9a9a60bff4337742.png)
您最近一年使用:0次
2022-05-08更新
|
596次组卷
|
3卷引用:江西省上高二中2023届高三上学期第二次月考数学(文)试题