题目
题型:不详难度:来源:
A.若一条直线平行于两个相交平面,则这条直线与这两个平面的交线平行 |
B.垂直于同一条直线的两条直线相互垂直 |
C.若一个平面经过另一个平面的垂线,那么这两个平面相互垂直 |
D.若一个平面内的两条相交直线与另一个平面内的相交直线分别平行,那么这两个平面相互平行 |
答案
解析
试题分析:垂直同一条直线的两条直线有可能平行.故B错.
点评:本题主要考查线面垂直与平行的判定定理或性质定理.解决本题的关键在于对课本知
识的熟练掌握程度.
核心考点
试题【下列命题中假命题是A.若一条直线平行于两个相交平面,则这条直线与这两个平面的交线平行B.垂直于同一条直线的两条直线相互垂直C.若一个平面经过另一个平面的垂线,那】;主要考察你对线线角等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045241-49026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045241-62417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045241-93446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045241-46497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045241-44497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-19362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-41077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-49459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-41805.png)
平面
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-54625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-66964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-49543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-42890.png)
(1)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-19315.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045243-75299.png)
(2)求平面
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045243-42657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045242-49459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045235-72980.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045235-57363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045235-52226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045235-75108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045236-11783.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045231-74053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045231-11781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045231-86371.png)
(Ⅰ)求证:EF//平面PAD;
(Ⅱ)求三棱锥C—PBD的体积.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045221-74587.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045222-57280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045222-66360.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045222-58709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045222-69869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045223-47619.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045223-22228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045223-98960.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045222-58709.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045223-25690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045224-44116.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045224-41160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045224-70393.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045224-14575.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045224-55221.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045225-43117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045225-50799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045225-10082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045225-58390.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045226-96404.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045226-44319.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045226-84183.jpg)
A. B. C. D.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045214-36187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045214-87151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045214-51877.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045214-15272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045215-20250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045215-70748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045215-80011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045215-76024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022045215-65512.png)
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