解题方法
1 . 据我国古代数学名著《九章算术》记载:“堑堵”指底面为直角三角形,且侧棱垂直于底面的三棱柱.在如图的“堑堵”
中,
,
为棱
的中点,若直线
与
所成角的余弦值为
,则该 “堑堵”的外接球的表面积为( )
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645104274071552/2647186244435968/STEM/cccdccf783c04b1cad262727beb425b6.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6eca7a916f82bdbc5444e92e84aaa6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1ab15b8ce8276ea317afb3497e7222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645104274071552/2647186244435968/STEM/cccdccf783c04b1cad262727beb425b6.png?resizew=181)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
2 . 据我国古代数学名著《九章算术》记载:“堑堵”指底面为直角三角形,且侧棱垂直于底面的三棱柱.在如图的“堑堵”
中,
,若四棱锥
体积为
,则该 “堑堵”的外接球的表面积为( )
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645104119742464/2647057694515200/STEM/d2a46b057efe4c4d9823490cc38e9666.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6eca7a916f82bdbc5444e92e84aaa6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1ab15b8ce8276ea317afb3497e7222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576a4ef4862e8d7f3a0084d8e089646d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645104119742464/2647057694515200/STEM/d2a46b057efe4c4d9823490cc38e9666.png?resizew=185)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-30更新
|
318次组卷
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3卷引用:四川省巴中市2021届高三一模数学(文)试题