题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063054-36647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063054-99303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063054-75894.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063054-32449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063055-86327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063055-38387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063055-86327.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:设圆锥底面圆的半径为
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063056-47360.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063054-99303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063056-52899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063057-42847.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063057-90435.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063055-86327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063057-32618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063055-86327.png)
核心考点
试题【《算数书》竹简于上世纪八十年代在湖北省江陵县张家山出土,这是我国现存最早的有系统的数学典籍,其中记载有求“囷盖”的术:置如其周,令相承也.又以高乘之,三十六成一】;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
A.1 | B.2 | C.3 | D.4 |
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063049-59065.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063045-83256.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063040-98916.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063032-41042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021063032-96810.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A.1 | B.2 | C.3 | D.4 |
A.![]() | B.![]() | C.![]() | D.![]() |
A.![]() | B.![]() | C.![]() | D.![]() |