题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015301-70476.gif)
棱长为2的正方体
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015301-17206.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015301-86073.gif)
①求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015301-50678.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015302-13319.gif)
②求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015301-50678.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015302-89726.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015302-71706.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015302-82756.gif)
解析
核心考点
举一反三
四棱锥
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015254-59429.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015254-56174.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015255-17995.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015255-11733.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015255-17995.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015255-55570.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015255-28854.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015255-84091.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015256-87558.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015256-47507.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015256-51514.gif)
②求二面角
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015256-51315.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015247-65233.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015247-65233.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015247-92859.jpg)
A.120° | B.90° | C.60° | D.45° |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015243-66472.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015243-36495.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015243-45665.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015243-36495.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015243-45665.gif)
A.![]() ![]() ![]() ![]() | B.![]() ![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015238-64723.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015238-38304.gif)
正东方向射出的太阳光线与地面成
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015238-27607.gif)
面
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015238-48784.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015238-64723.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022015239-72521.gif)
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