名校
1 . 如图,直角梯形
中,
,
,
,若将直角梯形绕
边旋转一周,则所得几何体的表面积为
![](https://img.xkw.com/dksih/QBM/2017/6/19/1712532946223104/1713811444768768/STEM/ea772d00b5234d30902114986cc092f9.png?resizew=99)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0e5697eca3f5205cb7b343648240bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d319544f41cbff60450034e52b1e1d16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2017/6/19/1712532946223104/1713811444768768/STEM/ea772d00b5234d30902114986cc092f9.png?resizew=99)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-06-21更新
|
996次组卷
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2卷引用:四川省乐山市十校2020-2021学年高二上学期期中联考数学(理)试题
2 . 若一个圆锥的侧面积是底面积的2倍,则圆锥侧面展开图的扇形的圆心角为
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
751次组卷
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8卷引用:2015-2016学年四川成都市六校高二上学期期中联考理科数学试卷