题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082733-21548.png)
Com
A.圆柱 | B.空心圆柱 |
C.圆 锥 | D.圆台 |
答案
解析
核心考点
试题【如右图,一几何体的三视图:则这个几何体是( )ComA.圆柱B.空心圆柱C.圆 锥D.圆台】;主要考察你对空间几何体的视图与直观图等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082728-24859.png)
A.![]() | B.![]() | C.![]() | D.![]() |
.如图,平行六面体ABCD-A1B1C1D1中,∠BAD=∠BAA1=∠DAA1=60°,
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082723-28917.jpg)
(1)当AA1=3,AB=2,AD=2,求AC1的长;
(2)当底面ABCD是菱形时,求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082723-73922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082657-31092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082657-26714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082657-10168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082657-85890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082657-30202.png)
(1)求直线
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082657-75224.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-37451.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-64031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-90165.png)
(3)线段
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-40650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-74844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-97255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082658-24561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082659-57122.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082651-31504.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082645-41679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082645-14794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082645-77464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082646-11396.jpg)
(Ⅰ)请确定面
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082646-16565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082646-39379.png)
(Ⅱ)请在
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082646-66202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082647-89365.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082647-65610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082646-16565.png)
(Ⅲ) 求二面角
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021082647-60778.png)
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