题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071249-85128.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071249-32247.png)
A.![]() | B.![]() | C.![]() | D.19 |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071250-31244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071250-15463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071251-56344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071251-71858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071251-79752.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071232-13310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071232-53398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071232-61549.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071232-10477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071233-84916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071233-79849.png)
(I)当
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071233-67126.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071233-64634.png)
(II)设二面角
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071233-65926.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071233-55400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071234-11741.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071234-94818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071226-93691.png)
(1)若侧棱长为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071227-77375.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071227-46266.png)
(2)若AB1与BC1成
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071227-64294.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071227-39270.png)
(1)当E为AB的中点时,求点E到平面ACD1的距离;
(2)AE等于何值时,二面角D1-EC-D的大小为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071217-40789.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071217-99706.png)
如图,已知
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071211-52002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071211-27366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071212-42668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071212-54901.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071212-40947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071211-52002.png)
(1) 证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071212-60985.png)
(2) 若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071213-94161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071213-56064.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071213-44607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071213-52055.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071214-54674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071214-10630.png)
如图,已知
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071200-69263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071200-11349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-48359.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-91580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-50289.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-50255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-95746.png)
(1)求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-42570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071201-98561.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071202-42884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071202-74072.png)
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