名校
1 . 如图,已知在直三棱柱
中,
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/b0f37cd1-331e-4c2e-8237-dfefc4113f7d.png?resizew=155)
(1)在图中画出过
三点的截面,并说出截面图形的形状(不必说明画法与理由);
(2)求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48593b2bdb51550ec0a2b9d5893d36fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d508af23b2c772ab604c45b3eb081919.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/b0f37cd1-331e-4c2e-8237-dfefc4113f7d.png?resizew=155)
(1)在图中画出过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5f302c1c2f7e1b46cad05594ed672e.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9145a795e5f18846107a7355075bd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb0295b373c6e306ca0dcf86f8b941.png)
您最近一年使用:0次
2019-10-29更新
|
621次组卷
|
4卷引用:人教B版 必修2 必杀技 第一章 1.2.2空间中的平行关系课时3 平面与平面平行
2019高二上·全国·专题练习
名校
2 . 设平面
与平面
相交于直线
,平面
与平面
相交于直线
,则“
”是“
”的______________ 条件(填“充分不必要”、“必要不充分”、“充要”或“既不充分也不必要”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d553efed052e7e0777728ef622a5c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de666db0febae223cc4d1dc189d71ca6.png)
您最近一年使用:0次
2019-10-25更新
|
619次组卷
|
5卷引用:【新教材精创】11.3.3平面与平面平行(第1课时)练习(2)
(已下线)【新教材精创】11.3.3平面与平面平行(第1课时)练习(2)沪教版(2020) 选修第一册 新课改一课一练 第3章 3.4.1 判断空间直线、平面的位置关系(已下线)2019年11月3日 《每日一题》选修2-1-每周一测(已下线)2019年11月3日 《每日一题》选修1-1- 每周一测湖南省长沙市南雅中学2021-2022学年高一下学期期中数学试题
解题方法
3 . 在棱长为2的正方体
中,
的中点是P.问:过点
作与平面
平行的截面,该截面是三角形吗?并求该截面的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0ec61018d883ea288c2ec406f2f79f.png)
您最近一年使用:0次
解题方法
4 . 已知AB,CD是夹在两个平行平面
,
之间的异面直线段,P,Q分别是线段AB,CD上的点,且
.求证:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7b271dbfdc1783d12e80e1d63de25c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c1ad40967e9c203bbc1cb3044a8f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43635ee5e1c48cc058cbd81d33dc954d.png)
您最近一年使用:0次
解题方法
5 . 如图,已知平面
平面
,线段AB分别交平面
,
于点M,N,线段AD分别交平面
,
于点C,D,线段BF分别交平面
,
于点F,E.若
,
,
,
的面积为30,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a96d1e67d5e74d6122c8dfa63f183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7b0d1f022143cd6e5fd56b7497a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e5c289b8aabdbfba95c7fd1e1842f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b4ee7fdc6c8be247097cc318513f5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf60421699db0d4b46f61ecec5cf82a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/08998949-9986-41f3-8360-4c0bf5b59ae9.png?resizew=192)
您最近一年使用:0次
解题方法
6 . 已知AB,CD是夹在平行平面
,
间的异面线段,A,
,B,
,且
,
,
,AB与CD成
角,求异面直线AC与BD所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4cc2f3dcb248fc764614be3a9ddd25b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaccf1887c4b530fd86a2f0f199c6797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ff2e2780c282e8ab8e5e88681e1efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
您最近一年使用:0次
解题方法
7 . 如图,已知平面
平面
,O为平面
,
外一点,射线OA,OB,OC分别交平面
于点
,
,
,交平面
于点A,B,C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/c4c37ffb-c585-4405-95d3-94fb50a7ddd4.png?resizew=178)
(1)求证:
.
(2)若
,
,
,求BC的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d7ffb7889a31b267a85f1ea238138e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5d54dfb9237412a7c1c00658830de6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3557809c066e68395b614535a7675e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/c4c37ffb-c585-4405-95d3-94fb50a7ddd4.png?resizew=178)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e42e4a22b267d1edae49e968b07267.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ab0cbcf1eaecea7423b50fcf955a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e278682b19437b2a5c02fede71b630a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f152c487c8448cad207c52c64d80abfc.png)
您最近一年使用:0次
解题方法
8 . 已知正方体
的棱长为2,E,F分别是
,
的中点,试判断四边形
的形状,并计算其面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6069dc466eec75bbeb3d5c9b51cb3a70.png)
您最近一年使用:0次
解题方法
9 . 若平面
平面
,A,
,B,
,线段AB与线段CD交于点P,且
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc2ddabf078c1b683b067eb1aee1969.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4cc2f3dcb248fc764614be3a9ddd25b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaccf1887c4b530fd86a2f0f199c6797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29224be6a2381b38bc64b144d26dad26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98340684378ffb695cd3d2a8a252c11a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774f29f3a042bdbe3f9f15401c25d98e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc2ddabf078c1b683b067eb1aee1969.png)
您最近一年使用:0次
2019-10-10更新
|
87次组卷
|
2卷引用:北师大版(2019) 必修第二册 金榜题名 第六章 立体几何初步 §4 平行关系 4.2 平面与平面平行
解题方法
10 . 夹在两个平行平面间的两线段AB,CD或它们的延长线相交于点S,已知
,
,
,求线段CS的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b96b6aa11c60dc9d174b9afdbb0392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2c28bf73bcef2b9bbc0de14c7fcfd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552b53b1bc1443be9198552724d9215b.png)
您最近一年使用:0次