解题方法
1 . 已知圆台
的上下底面半径分别为
和
,母线与下底面所成的角为
,则该圆台的表面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
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2 . 如图所示的圆台
,在轴截面
中,
,且
,则该圆台的体积为_________
;侧面积为_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f1161e0345b3646c71365430dccbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca2ee6ebf89bc12420da92e1c63bfaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6d1d99afa158b4ba4fc0dae562fcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
![](https://img.xkw.com/dksih/QBM/2021/11/23/2857440867442688/2860540230483968/STEM/ae3edc72-0f5a-4199-97e7-19ec48223b45.png?resizew=239)
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名校
解题方法
3 . 若一个圆台的母线长为l,上、下底面半径
,
满足
,且圆台的侧面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78cd2ff6af1dc21dc774bd2fa030ad66.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1028e94386dd1eacd96310edacf20509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8877c38d15fb2c20245cdf348987258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccafc20b51107cd4c2c8a2170a1c0ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27fd79572bbb49f102c6ff3740cb2124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78cd2ff6af1dc21dc774bd2fa030ad66.png)
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4 . 若圆台的高是3,一个底面半径是另一个底面半径的2倍,母线与下底面所成的角是
,则这个圆台的侧面积是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
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2017-11-30更新
|
526次组卷
|
2卷引用:浙江省金华市东阳中学2017-2018学年高二上学期期中考试数学试卷
11-12高二上·浙江台州·期中
解题方法
5 . 四边形ABCD四顶点的坐标分别为
,将四边形绕y轴旋转一周得到一几何体,则此几何体的表面积为__________
![](https://img.xkw.com/dksih/QBM/2011/12/27/1578133969141760/1578133969469440/STEM/3a664467417c4c0a8a8263393fc815d2.png?resizew=185)
您最近一年使用:0次